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new file mode 100644
index 00000000..5483b3eb
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index 1c12e5c6..099d7aa9 100644
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   m_ObjectHideFlags: 0
@@ -1674,7 +1813,9 @@ MonoBehaviour:
   openxrExtensionStrings: XR_FB_hand_tracking_aim
   company: Unity
   priority: 0
+  targetOpenXRApiVersion: 
   required: 0
+  customRuntimeLoaderName: 
 --- !u!114 &8708900896755547445
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -1694,7 +1835,9 @@ MonoBehaviour:
   openxrExtensionStrings: XR_EXT_hand_interaction
   company: Unity
   priority: 0
+  targetOpenXRApiVersion: 
   required: 0
+  customRuntimeLoaderName: 
 --- !u!114 &8805819820171693453
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -1714,7 +1857,9 @@ MonoBehaviour:
   openxrExtensionStrings: XR_EXT_hand_tracking
   company: Unity
   priority: -100
+  targetOpenXRApiVersion: 
   required: 0
+  customRuntimeLoaderName: 
 --- !u!114 &9011612072392039164
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -1734,4 +1879,6 @@ MonoBehaviour:
   openxrExtensionStrings: XR_EXT_eye_gaze_interaction
   company: Unity
   priority: 0
+  targetOpenXRApiVersion: 
   required: 0
+  customRuntimeLoaderName: 
diff --git a/code/VR Art Gallery/Packages/manifest.json b/code/VR Art Gallery/Packages/manifest.json
index c7c394af..a53a3cb2 100644
--- a/code/VR Art Gallery/Packages/manifest.json	
+++ b/code/VR Art Gallery/Packages/manifest.json	
@@ -10,8 +10,8 @@
     "com.unity.collab-proxy": "2.10.2",
     "com.unity.feature.development": "1.0.2",
     "com.unity.inputsystem": "1.14.2",
-    "com.unity.learn.iet-framework": "5.0.1",
-    "com.unity.mobile.android-logcat": "1.4.5",
+    "com.unity.learn.iet-framework": "5.0.2",
+    "com.unity.mobile.android-logcat": "1.4.6",
     "com.unity.multiplayer.center": "1.0.0",
     "com.unity.netcode.gameobjects": "2.7.0",
     "com.unity.nuget.newtonsoft-json": "3.2.2",
@@ -25,11 +25,11 @@
     "com.unity.services.relay": "1.2.0",
     "com.unity.services.vivox": "16.7.0",
     "com.unity.splines": "2.8.4",
-    "com.unity.transport": "2.5.3",
-    "com.unity.xr.hands": "1.5.1",
+    "com.unity.transport": "2.6.0",
+    "com.unity.xr.hands": "1.7.0",
     "com.unity.xr.interaction.toolkit": "3.2.2",
     "com.unity.xr.management": "4.5.3",
-    "com.unity.xr.openxr": "1.15.1",
+    "com.unity.xr.openxr": "1.16.0",
     "com.unity.modules.accessibility": "1.0.0",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",
diff --git a/code/VR Art Gallery/ProjectSettings/ProjectVersion.txt b/code/VR Art Gallery/ProjectSettings/ProjectVersion.txt
index a64a8680..c31f18a1 100644
--- a/code/VR Art Gallery/ProjectSettings/ProjectVersion.txt	
+++ b/code/VR Art Gallery/ProjectSettings/ProjectVersion.txt	
@@ -1,2 +1,2 @@
-m_EditorVersion: 6000.2.2f1
-m_EditorVersionWithRevision: 6000.2.2f1 (ea398eefe1c2)
+m_EditorVersion: 6000.2.12f1
+m_EditorVersionWithRevision: 6000.2.12f1 (e89d5df0e333)
diff --git a/uml/detailed sequence diagrams/artwork_persistence_flow.puml b/uml/detailed sequence diagrams/artwork_persistence_flow.puml
new file mode 100644
index 00000000..ab60206f
--- /dev/null
+++ b/uml/detailed sequence diagrams/artwork_persistence_flow.puml	
@@ -0,0 +1,41 @@
+@startuml
+
+
+title Sequence Diagram: Artwork Persistence Flow& Storage Sync
+
+actor User
+
+participant "PaintableSurfaceRT" as Surface
+participant "UI / Save Menu" as UI
+participant "SupabaseArtworkRepository" as ArtworkRepo
+participant "Supabase.Client (SDK)" as SupabaseSDK
+database "Local Disk" as Disk
+database "Supabase Storage" as Storage
+database "Supabase Database" as DB
+
+== Serialization ==
+User -> UI: Click Save Artwork
+UI -> Surface: SaveCanvasToPNG(fileName)
+Surface -> Surface: Texture2D.ReadPixels(RenderTexture)
+Surface -> Surface: tex.EncodeToPNG()
+Surface -> Disk: File.WriteAllBytes(path)
+Surface -> UI: Return localPath
+
+== Cloud Upload ==
+UI -> ArtworkRepo: CreateArtworkWithUploadAsync(artworkData, bytes)
+ArtworkRepo -> ArtworkRepo: Generate Thumbnail (GenerateHalfSizePng)
+ArtworkRepo -> SupabaseSDK: UploadObjectAsync(original)
+SupabaseSDK -> Storage: POST /storage/v1/object/artwork-images
+ArtworkRepo -> SupabaseSDK: UploadObjectAsync(thumbnail)
+SupabaseSDK -> Storage: POST /storage/v1/object/artwork-images
+
+== Metadata Sync ==
+ArtworkRepo -> ArtworkRepo: Set image_url & thumbnail_url
+ArtworkRepo -> SupabaseSDK: client.From<ArtworkData>().Insert(artwork)
+SupabaseSDK -> DB: INSERT INTO artwork
+DB -> SupabaseSDK: OK / Created Model
+SupabaseSDK -> ArtworkRepo: Return Model
+ArtworkRepo -> UI: Return Success
+UI -> User: Display "Saved Selection"
+
+@enduml
diff --git a/uml/detailed sequence diagrams/authentication_flow.puml b/uml/detailed sequence diagrams/authentication_flow.puml
new file mode 100644
index 00000000..225694f5
--- /dev/null
+++ b/uml/detailed sequence diagrams/authentication_flow.puml	
@@ -0,0 +1,40 @@
+@startuml
+
+
+title Sequence Diagram: User Authentication & Role Management
+
+actor User
+participant "AuthenticationUIController" as UI
+participant "AuthenticationManager" as AuthManager
+participant "SupabaseClientManager" as ClientManager
+participant "SupabaseArtistRepository" as ArtistRepo
+participant "Supabase.Client (SDK)" as SupabaseSDK
+database "Supabase Auth" as AuthDB
+database "Supabase Database" as DB
+
+== Initialization ==
+AuthManager -> ClientManager: InitializeAsync()
+ClientManager -> SupabaseSDK: Create Instance
+AuthManager -> ArtistRepo: Create(SupabaseClientWrapper)
+
+== Login Flow ==
+User -> UI: Enter Credentials & Click Login
+UI -> AuthManager: LoginUser(email, password)
+AuthManager -> SupabaseSDK: client.Auth.SignIn(email, password)
+SupabaseSDK -> AuthDB: Authenticate
+AuthDB -> SupabaseSDK: Return Session
+SupabaseSDK -> AuthManager: Return Session
+AuthManager -> UI: Invoke OnUserLoggedIn
+
+== Role Fetching ==
+AuthManager -> ArtistRepo: GetArtistProfileAsync(userId)
+ArtistRepo -> SupabaseSDK: client.From<ArtistProfile>().Where(auth_user_id == userId).Single()
+SupabaseSDK -> DB: Query Profile
+DB -> SupabaseSDK: Profile Data
+SupabaseSDK -> ArtistRepo: Return Profile
+ArtistRepo -> AuthManager: Return Profile
+AuthManager -> AuthManager: Determine Role (e.g. Artist)
+AuthManager -> UI: Invoke OnUserRoleChanged(role)
+UI -> User: Display Success & User Role
+
+@enduml
diff --git a/uml/detailed sequence diagrams/gallery_spawning_flow.puml b/uml/detailed sequence diagrams/gallery_spawning_flow.puml
new file mode 100644
index 00000000..bfd6e31e
--- /dev/null
+++ b/uml/detailed sequence diagrams/gallery_spawning_flow.puml	
@@ -0,0 +1,43 @@
+@startuml
+
+
+title Sequence Diagram: Data-Driven Gallery Spawning
+
+actor User
+participant "GameManager" as GM
+participant "SupabaseGalleryRepository" as GalleryRepo
+participant "Supabase.Client (SDK)" as SupabaseSDK
+participant "CanvasSpawner" as Spawner
+participant "PaintableSurfaceRT" as Surface
+database "Supabase Database" as DB
+
+== Gallery Data Fetch ==
+User -> GM: Entry to Gallery Scene
+GM -> GM: LoadScene("Gallery")
+GM -> GalleryRepo: GetGalleryAsync(galleryId)
+GalleryRepo -> SupabaseSDK: client.From<Gallery>().Where(id == gid).Single()
+SupabaseSDK -> DB: SELECT * FROM gallery
+DB -> SupabaseSDK: Gallery Data (including artwork_ids)
+SupabaseSDK -> GalleryRepo: Return Gallery Model
+GalleryRepo -> GM: Return GalleryData
+
+== Artwork Path Fetch and Canvas Initialization ==
+GM -> GalleryRepo : GetArtworkPaths(galleryId)
+activate GalleryRepo
+GalleryRepo -> SupabaseSDK : Query artworks for gallery
+SupabaseSDK -->> GalleryRepo : List of path metadata
+GalleryRepo -->> GM : Dictionary<int, (image_url, thumb_url)>
+deactivate GalleryRepo
+
+loop for each slot in dictionary
+    GM -> SupabaseSDK : Download texture (image_url)
+    SupabaseSDK -->> GM : Byte array / Texture2D
+    GM -> Surface : SetBackground(texture)
+    activate Surface
+    Surface -> Surface : Graphics.Blit to RenderTexture
+    Surface -->> GM : Success
+    deactivate Surface
+end
+
+GM -> GM: Notify "Gallery Ready"
+@enduml
diff --git a/uml/detailed sequence diagrams/gpu_painting_flow.puml b/uml/detailed sequence diagrams/gpu_painting_flow.puml
new file mode 100644
index 00000000..3a49a8c3
--- /dev/null
+++ b/uml/detailed sequence diagrams/gpu_painting_flow.puml	
@@ -0,0 +1,45 @@
+@startuml
+
+
+title Sequence Diagram: GPU-Based Painting Flow (Blit Ping-Pong)
+actor User
+participant "XR Controller" as Controller
+participant "XRPainterRayInput" as RayInput
+participant "BrushToolState" as BrushState
+participant "PaintableSurfaceRT" as Surface
+participant "Graphics (GPU)" as GPU
+participant "BrushBlit.shader" as Shader
+
+== Stroke Start ==
+User -> Controller: Pull Trigger
+Controller -> RayInput: Action Triggered
+RayInput -> RayInput: Physics.Raycast()
+RayInput -> Surface: GetComponent<PaintableSurfaceRT>()
+RayInput -> Surface: TryPaintAt(uv)
+
+== Drawing Loop (Every Frame) ==
+loop while Trigger Held
+    User -> Controller: Move Position/Rotation
+    RayInput -> RayInput: Calculate Intersecting UV
+    RayInput -> BrushState: Get Current Brush (Color, Radius, Hardness)
+    RayInput -> Surface: PaintAt(uv, brushState)
+    
+    Surface -> Shader: Set Params (_BrushTex, _BrushColor, _BrushParams)
+    Surface -> GPU: Graphics.Blit(Buffer_A, Buffer_B, brushBlitMaterial)
+    
+    note right of GPU
+        Shader reads Buffer_A,
+        applies brush at UV,
+        outputs to Buffer_B.
+    end note
+    
+    GPU -> Surface: Blit Complete
+    Surface -> Surface: Swap Buffers (Buffer_A, Buffer_B)
+    Surface -> Surface: ApplyToRenderer(Buffer_A)
+    Surface -> GPU: Update Material _MainTex/_BaseMap
+end
+
+== Stroke End ==
+User -> Controller: Release Trigger
+RayInput -> RayInput: EndStroke()
+@enduml
diff --git a/uml/sequence diagrams/Create_GenAI_Art/image.png b/uml/sequence diagrams/Create_GenAI_Art/image.png
deleted file mode 100644
index d39af3ff..00000000
Binary files a/uml/sequence diagrams/Create_GenAI_Art/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/Create_GenAI_Art/uml.txt b/uml/sequence diagrams/Create_GenAI_Art/uml.txt
deleted file mode 100644
index 3db6fdb2..00000000
--- a/uml/sequence diagrams/Create_GenAI_Art/uml.txt	
+++ /dev/null
@@ -1,41 +0,0 @@
-@startuml
-title Use Case — Create GenAI Art
-
-actor User
-participant "Controller/Input Manager" as Input
-participant "HUD" as HUD
-participant "Art Tools" as Tools
-participant "Canvas" as Canvas
-participant "Network Manager" as Net
-participant "Event Logger" as Log
-
-User -> Input : Opens HUD and taps "Create GenAI Art"
-Input -> HUD : Prompt keyboard pops up
-HUD -> Input : User enters prompt
-Input --> HUD : Prompt processed when "Generate" clicked on
-Log --> Log: Log: GenAI.GenerateClicked
-HUD -> Tools : "Generate" button changes to "Generating" 
-Log --> Log: Log: GenAI.RequestStarted
-Tools -> Net : GenAI Model receives the prompt and starts generating the art
-Net --> Tools : GenAI is ready
-Log --> Log: Log: GenAI.ResultReady
-Tools -> Canvas : GenAI art is attached to the canvas
-Canvas --> Tools : Feedback received about ready image
-Log --> Log: Log: GenAI.CanvasUpdated
-Tools --> HUD : Art generation complete
-HUD -> User : Displays generated artwork
-Log --> Log: Log: GenAI.Displayed
-
-alt Save and Publish
-    User -> HUD : Taps "Save" then "Upload"
-    Log --> Log: Log: GenAI.SaveRequested
-    HUD -> Canvas : Exports current canvas image 
-    Canvas --> HUD : Image is converted to an exportable format
-    Log --> Log: Log: GenAI.ExportReady
-    HUD -> Net : Uploads local file
-    Net --> HUD : Gives object URL
-    Log --> Log: Log: GenAI.UploadComplete
-    HUD -> User : Art published successfully
-    Log --> Log: Log: GenAI.Published
-end
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/Sign_In/LogIn.png b/uml/sequence diagrams/Sign_In/LogIn.png
deleted file mode 100644
index fb21db05..00000000
Binary files a/uml/sequence diagrams/Sign_In/LogIn.png and /dev/null differ
diff --git a/uml/sequence diagrams/browse_and_join_gallery/image.png b/uml/sequence diagrams/browse_and_join_gallery/image.png
deleted file mode 100644
index 266e5515..00000000
Binary files a/uml/sequence diagrams/browse_and_join_gallery/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/browse_and_join_gallery/uml.txt b/uml/sequence diagrams/browse_and_join_gallery/uml.txt
deleted file mode 100644
index 0de67fb0..00000000
--- a/uml/sequence diagrams/browse_and_join_gallery/uml.txt	
+++ /dev/null
@@ -1,68 +0,0 @@
-title Browse/Join Galleries - Full Flow
-
-' ============== ACTORS & COMPONENTS ==============
-actor "User" as User
-participant "Controller/Input Manager" as Ctrl
-participant "HUD" as HUD
-participant "Security Manager" as Sec
-participant "Profile Manager" as Prof
-participant "Network Manager" as Net
-participant "Room Manager" as Room
-participant "Collaboration/Communication" as Collab
-participant "Canvas" as Canvas
-participant "Event Logger" as Log
-
-' ============== TRIGGER ==============
-User ->> Ctrl : Presses Join
-Ctrl --> HUD: Open "Join a Gallery"
-HUD ->> Sec: Is user authenticated?
-Sec --> HUD: Session status (signed-in / guest)
-Log --> Log: Log: HUD.OpenJoin
-
-' ============== LISTING/DIRECTORY ==============
-alt Signed-in
-  HUD ->> Room: Fetch user galleries & workspaces
-    Room --> HUD: Gallery/workspace list
-    end
-    HUD ->> Net: Fetch public gallery directory
-    Net --> HUD: Public gallery list
-
-    HUD --> User: Show: public list + "Enter Code" (+ personal/workspace if signed-in)
-
-      User ->> Ctrl: Selects option
-        Ctrl --> HUD: Selects option (Public / Personal Workspace / Enter Code)
-          Log --> Log: Log: SelectionMade
-
-
-          ' ----- Flow C: Private Gallery via Join Code -----
-          alt Private gallery (join code)
-            User ->> Ctrl: Enter code
-              Ctrl ->> HUD: Enter join code
-                HUD ->> Sec: Validate code (access control)
-                  Sec ->> Net: Resolve galleryId from code
-                    Net --> Sec: galleryId or error
-                      Sec --> HUD: Validation result
-                      end
-
-                      HUD ->> Net: Request join(galleryId)
-                      Net ->> Room: Load room state
-                      Room ->> Canvas: Load artworks for private gallery
-                      Canvas --> Net: Asset refs/streams ready
-                      Net --> HUD: Gallery session ready
-                      HUD ->> Collab: Join presence/voice/text
-                      Collab --> User: Presence/chat enabled
-                      Log --> Log: Log: JoinedGallery (code)
-
-
-                      ' ============== NOTES (Reqs, Pre/Post) ==============
-                      ' note over Net, Collab
-                      ' Requirements: stable internet • low-latency multi-user sync
-                      ' end note
-                      ' note over Sec
-                      ' Private galleries require valid code/invite (authZ/authN)
-                      ' end note
-                      ' note over Room, Canvas
-                      ' Postcondition: gallery/workspace rendered with artworks
-                      ' end note
-
-                      @enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/browse_and_join_gallery/uml.wsd b/uml/sequence diagrams/browse_and_join_gallery/uml.wsd
deleted file mode 100644
index 0de67fb0..00000000
--- a/uml/sequence diagrams/browse_and_join_gallery/uml.wsd	
+++ /dev/null
@@ -1,68 +0,0 @@
-title Browse/Join Galleries - Full Flow
-
-' ============== ACTORS & COMPONENTS ==============
-actor "User" as User
-participant "Controller/Input Manager" as Ctrl
-participant "HUD" as HUD
-participant "Security Manager" as Sec
-participant "Profile Manager" as Prof
-participant "Network Manager" as Net
-participant "Room Manager" as Room
-participant "Collaboration/Communication" as Collab
-participant "Canvas" as Canvas
-participant "Event Logger" as Log
-
-' ============== TRIGGER ==============
-User ->> Ctrl : Presses Join
-Ctrl --> HUD: Open "Join a Gallery"
-HUD ->> Sec: Is user authenticated?
-Sec --> HUD: Session status (signed-in / guest)
-Log --> Log: Log: HUD.OpenJoin
-
-' ============== LISTING/DIRECTORY ==============
-alt Signed-in
-  HUD ->> Room: Fetch user galleries & workspaces
-    Room --> HUD: Gallery/workspace list
-    end
-    HUD ->> Net: Fetch public gallery directory
-    Net --> HUD: Public gallery list
-
-    HUD --> User: Show: public list + "Enter Code" (+ personal/workspace if signed-in)
-
-      User ->> Ctrl: Selects option
-        Ctrl --> HUD: Selects option (Public / Personal Workspace / Enter Code)
-          Log --> Log: Log: SelectionMade
-
-
-          ' ----- Flow C: Private Gallery via Join Code -----
-          alt Private gallery (join code)
-            User ->> Ctrl: Enter code
-              Ctrl ->> HUD: Enter join code
-                HUD ->> Sec: Validate code (access control)
-                  Sec ->> Net: Resolve galleryId from code
-                    Net --> Sec: galleryId or error
-                      Sec --> HUD: Validation result
-                      end
-
-                      HUD ->> Net: Request join(galleryId)
-                      Net ->> Room: Load room state
-                      Room ->> Canvas: Load artworks for private gallery
-                      Canvas --> Net: Asset refs/streams ready
-                      Net --> HUD: Gallery session ready
-                      HUD ->> Collab: Join presence/voice/text
-                      Collab --> User: Presence/chat enabled
-                      Log --> Log: Log: JoinedGallery (code)
-
-
-                      ' ============== NOTES (Reqs, Pre/Post) ==============
-                      ' note over Net, Collab
-                      ' Requirements: stable internet • low-latency multi-user sync
-                      ' end note
-                      ' note over Sec
-                      ' Private galleries require valid code/invite (authZ/authN)
-                      ' end note
-                      ' note over Room, Canvas
-                      ' Postcondition: gallery/workspace rendered with artworks
-                      ' end note
-
-                      @enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/collaborate/image.png b/uml/sequence diagrams/collaborate/image.png
deleted file mode 100644
index 9a7cd331..00000000
Binary files a/uml/sequence diagrams/collaborate/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/collaborate/uml.txt b/uml/sequence diagrams/collaborate/uml.txt
deleted file mode 100644
index 9d1c15bf..00000000
--- a/uml/sequence diagrams/collaborate/uml.txt	
+++ /dev/null
@@ -1,44 +0,0 @@
-@startuml
-actor User
-participant "Controller/Input Manager" as Input
-participant "HUD" as HUD
-participant "Collaboration Manager" as Colab
-participant "Security Manager" as Auth
-participant "Network Manager" as Network
-participant "Room Manager" as Room
-participant "Art Tools" as Tools
-participant "Canvas" as Canvas
-participant "Event Logger" as Logger
-== User joins a shared workspace ==
-User -> Input :  selects join a workspace
-Logger -> Logger: Log: Selects join workspace
-Input -> HUD : displays code textbox
-User -> Input : inputs code
-Input -> HUD : submits code
-Logger -> Logger: Log: Logs code
-HUD -> Colab : validates code
-Colab -> Auth : sends user info
-Auth -> Colab : authenticates user
-Colab -> Network : loads workspace instance
-Logger -> Logger: Log: Logs workspace info
-Network -> Room : loads workspace layout
-Room -> Canvas : loads artworks
-== User collaborates on a painting ==
-User -> Input : selects canvas
-Logger -> Logger: Log: Logs input
-Input -> Canvas : zooms in
-User -> Input : picks up a tool
-Input -> Tools : applies tool
-Tools -> Canvas : updates canvas
-Canvas -> Auth : authenticates update
-== User messages user ==
-User -> Input : selects chat
-Logger -> Logger: Log: Chat selected
-Input -> HUD : displays chat
-User -> Input : enters message
-Input -> HUD : saves message
-Logger -> Logger: Log: Message
-HUD -> Auth : requests authentication
-Auth -> HUD : authenticates message
-HUD -> Colab : sends message
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/communicate/image.png b/uml/sequence diagrams/communicate/image.png
deleted file mode 100644
index 0f099519..00000000
Binary files a/uml/sequence diagrams/communicate/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/communicate/uml.txt b/uml/sequence diagrams/communicate/uml.txt
deleted file mode 100644
index 1049bc5b..00000000
--- a/uml/sequence diagrams/communicate/uml.txt	
+++ /dev/null
@@ -1,43 +0,0 @@
-@startuml
-actor UserA
-actor UserB
-
-participant "Controller/Input Manager" as CIM
-participant "HUD" as HUD
-participant "Collaboration/Communication Manager" as CCM
-participant "Network Manager" as NM
-participant "Event Logger" as EL
-
-== Proximity Voice Chat Flow ==
-UserA -> CCM: Connects to local voice chat (initial volume=0)
-UserA -> NM: Moves closer to UserB
-NM -> CCM: Updates distance, adjusts UserA's voice volume for UserB
-UserA -> CIM: Speaks (voice input)
-CIM -> CCM: Forwards voice data (distance-based volume)
-CCM -> NM: Broadcasts voice to UserB
-
-alt Leaving the chat
-UserA -> NM: Leaves UserB's range (volume decreases)
-CCM -> EL: Log proximity/volume event
-EL -> EL : Log Mute Action
-end
-
-== Public ChatBox Flow (Text) ==
-UserA -> HUD: Opens HUD
-HUD -> CCM: Selects public chat
-CCM -> NM: Get history
-NM -> CCM: Returns messages
-CCM -> HUD: Shows history
-UserA -> CIM: Types message, clicks send
-CIM -> CCM: Forwards message
-CCM -> NM: Broadcasts to users
-CCM -> EL: Log message event
-EL -> EL: Log Mute Action
-
-== Private ChatBox Flow (Text) ==
-UserA -> HUD: Selects UserB for private chat
-UserA -> CIM: Points at UserB, selects chat option
-CIM -> CCM: Initiate private chat
-CCM -> NM: Opens private chat channel
-NM -> UserB: Delivers private chat message
-@enduml
diff --git a/uml/sequence diagrams/completeTutorial/completeTutorial.txt b/uml/sequence diagrams/completeTutorial/completeTutorial.txt
deleted file mode 100644
index 67a5ec0d..00000000
--- a/uml/sequence diagrams/completeTutorial/completeTutorial.txt	
+++ /dev/null
@@ -1,41 +0,0 @@
-@startuml
-
-actor User
-participant "Controller/Input Manager" as Controller
-participant "Tutorial Manager" as TutorialMgr
-participant "Room Manager" as RoomMgr
-participant "Event Logger" as Logger
-
-User -> Controller: Clicks 'Tutorial' option (HUD)
-Logger -> Logger: Log: Tutorial clicked
-Controller -> TutorialMgr: Start tutorial
-
-TutorialMgr -> User: Guides: "How to walk"
-User -> Controller: Performs walking action
-Controller -> TutorialMgr: Movement completed
-
-TutorialMgr -> User: Guides: "How to zoom in/out"
-User -> Controller: Performs zoom action
-Controller -> TutorialMgr: Zoom completed
-
-TutorialMgr -> User: Guides: "Painting features (color, save)"
-User -> Controller: Performs painting action
-Controller -> TutorialMgr: Painting completed
-
-TutorialMgr -> User: Guides: "Access and use the HUD"
-User -> Controller: Opens/Explores HUD
-Logger -> Logger: Log: HUD Opened
-Controller -> TutorialMgr: HUD explored
-
-TutorialMgr -> RoomMgr: Tutorial finished
-Logger -> Logger: Log: Tutorial finished
-alt Signed-in User
-    RoomMgr -> RoomMgr: Load workspace
-    RoomMgr -> User: Places user in Workspace (Postcondition 1)
-else Guest User
-    RoomMgr -> RoomMgr: Load default gallery
-    RoomMgr -> User: Places user in Default Gallery (Postcondition 2)
-end
-
-
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/completeTutorial/image.png b/uml/sequence diagrams/completeTutorial/image.png
deleted file mode 100644
index 65edecaf..00000000
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diff --git a/uml/sequence diagrams/create-3d-art/image.png b/uml/sequence diagrams/create-3d-art/image.png
deleted file mode 100644
index e437359f..00000000
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diff --git a/uml/sequence diagrams/create-3d-art/uml.txt b/uml/sequence diagrams/create-3d-art/uml.txt
deleted file mode 100644
index 87ce3b4a..00000000
--- a/uml/sequence diagrams/create-3d-art/uml.txt	
+++ /dev/null
@@ -1,49 +0,0 @@
-@startuml
-actor User
-participant "Controller/Input Manager" as Input
-participant "HUD Manager" as HUD
-participant "Canvas/Platform Manager" as Canvas
-participant "Art Tools Manager" as Tools
-participant "Network Manager" as Network
-participant "Event Logger" as Logger
-
-title Create 3D Art
-User -> Input: clicks on a platform on the floor
-Input -> Canvas: notify platform selection
-Canvas -> HUD: confirm platform ready
-Canvas -> Logger: log("PLATFORM_INITIALIZED", platformId)
-Canvas -> HUD: zoom into platform view
-HUD -> User: display empty surface
-
-== Choosing a Shape ==
-User -> HUD: chooses default shape (cube/sphere/cylinder/cone)
-HUD -> Canvas: request shape creation
-Canvas -> Tools: initialize default shape with properties
-Tools -> Canvas: return shape object
-Tools -> Logger: log("SHAPE_CREATED", shapeType, shapeId)
-Canvas -> HUD: place shape at center of platform
-HUD -> User: display shape on canvas
-
-== Choosing an Art Tool ==
-User -> Input: picks up an art tool
-Input -> Tools: selects the art tool
-Tools -> HUD: shows tool selection feedback
-HUD -> User: tool selected confirmation
-
-alt Select Platform from HUD
-    User -> HUD: selects platform from HUD while in workspace
-    HUD -> Canvas: request and load platform selection
-    Canvas -> Network: fetch previously saved 3D art
-    Network -> Canvas: return saved art data
-    Canvas -> Logger: log("ART_RESTORED", platformId, objectCount)
-    HUD -> User: show previously saved 3D art on platform surface
-end
-
-alt Change Art Tool
-    User -> Input: switches to different art tool
-    Input -> Tools: deactivate current tool, activate new tool
-    Tools -> Logger: log("TOOL_CHANGED", newTool)
-    Tools -> HUD: update tool selection indicator
-    HUD -> User: show new tool active
-end
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/create_an_art_gallery/create_an_art_gallery.png b/uml/sequence diagrams/create_an_art_gallery/create_an_art_gallery.png
deleted file mode 100644
index 46667389..00000000
Binary files a/uml/sequence diagrams/create_an_art_gallery/create_an_art_gallery.png and /dev/null differ
diff --git a/uml/sequence diagrams/create_an_art_gallery/image.png b/uml/sequence diagrams/create_an_art_gallery/image.png
new file mode 100644
index 00000000..58c51e35
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diff --git a/uml/sequence diagrams/create_an_art_gallery/uml.txt b/uml/sequence diagrams/create_an_art_gallery/uml.txt
index c0244784..43e1eb52 100644
--- a/uml/sequence diagrams/create_an_art_gallery/uml.txt	
+++ b/uml/sequence diagrams/create_an_art_gallery/uml.txt	
@@ -4,34 +4,35 @@ actor User
 participant "Input Manager" as Input
 participant "HUD Manager" as HUD
 participant "Room Manager" as Room
-participant "Security Manager" as SM
-participant "Event Logger" as Logger
+participant "Auth Manager" as SM
+/'participant "Event Logger" as Logger'/
 
-title Create an art gallery
+title Create an art room
 
 == Basic Flow ==
 
 User -> Input: clicks on HUD icon
-Input -> Logger: log user event
+/'Input -> Logger: log user event'/
 Input -> HUD: requests HUD
-User -> Input: clicks on create art gallery
-Input -> Logger: log user event
+User -> Input: clicks on create new room
+/'Input -> Logger: log user event'/
+Input -> HUD: validates and sends event information to HUD 
+/'Input -> Logger: log user event'/
+HUD -> User: modal with options (room name, privacy type) is opened
+User -> Input: Enters room's name and privacy type (public or private)
+/'Input -> Logger: log user event'/
 Input -> HUD: validates and sends event information to HUD
-Input -> Logger: log user event
-HUD -> User: modal with options (gallery name, privacy type) is opened
-User -> Input: Enters gallery's name and privacy type (public or private)
-Input -> Logger: log user event
-Input -> HUD: validates and sends event information to HUD
-HUD -> Room: requests a gallery with user information
+HUD -> Room: requests a room with user information
  
-== Alternative Flow 1 – Private Gallery ==
+== Alternative Flow 1 – Private Room ==
+
+Room -> SM: creates a room and requests a security layer.
+SM -> Room: encrypts the room to make it private
+Room -> User: notifies creation of private room.
 
-Room -> SM: creates a gallery and requests a security layer.
-SM -> Room: encrypts the gallery to make it private
-Room -> User: notifies creation of private gallery.
 
-== Alternative Flow 2 – Public Gallery ==
+== Alternative Flow 2 – Public Room ==
 
-Room -> User: notifies creation of public gallery
+Room -> User: notifies creation of public room
 
-@enduml
\ No newline at end of file
+@enduml
diff --git a/uml/sequence diagrams/customiseWorkspace/code.txt b/uml/sequence diagrams/customiseWorkspace/code.txt
deleted file mode 100644
index ba1fe094..00000000
--- a/uml/sequence diagrams/customiseWorkspace/code.txt	
+++ /dev/null
@@ -1,50 +0,0 @@
-@startuml
-actor "Signed-in User" as User
-participant HUD
-participant "Input Manager" as Controller
-participant "Room Manager" as RoomMgr
-participant "Art Tools" as ArtTools
-
-User -> HUD: Selects 'Customize Workspace' option
-activate HUD
-HUD -> Controller: Opens workspace customization menu
-deactivate HUD
-activate Controller
-Controller -> User: Shows customization options
-deactivate Controller
-
-alt Change placement of art pieces
-    
-    User -> Controller: Selects "Change placement of art pieces"
-    activate Controller
-    Controller -> RoomMgr: Enter placement edit mode
-    deactivate Controller
-    activate RoomMgr
-    RoomMgr -> User: Enter "Gallery Edit Mode" 
-    RoomMgr -> User: Can now move art pieces around
-    deactivate RoomMgr
-    
-else Change Art Supplies
-    
-    User -> Controller: Selects "Change Art Supplies"
-    activate Controller
-    Controller -> ArtTools: Enter art supplies edit mode
-    deactivate Controller
-    activate ArtTools
-    ArtTools -> User: Enter "Gallery Edit Mode" 
-    ArtTools -> User: Can now modify color palette
-    deactivate ArtTools
-
-else Change wall color
-
-    User -> Controller: Selects "Change wall color" 
-    activate Controller
-    Controller -> RoomMgr: Enter wall color edit mode
-    deactivate Controller
-    activate RoomMgr
-    RoomMgr -> User: Enter "Gallery Edit Mode" 
-    RoomMgr -> User: Can now choose wall colors
-    deactivate RoomMgr
-    
-end
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/customiseWorkspace/code.wsd b/uml/sequence diagrams/customiseWorkspace/code.wsd
deleted file mode 100644
index cbcb1d38..00000000
--- a/uml/sequence diagrams/customiseWorkspace/code.wsd	
+++ /dev/null
@@ -1,52 +0,0 @@
-@startuml 
-
-actor "Signed-in User" as User
-participant HUD
-participant "Controller/Input Manager" as Controller
-participant "Room Manager" as RoomMgr
-participant "Art Tools" as ArtTools
-
-User -> HUD: Selects 'Customize Workspace' option
-activate HUD
-HUD -> Controller: Request: CustomizeWorkspaceOptions()
-deactivate HUD
-activate Controller
-Controller -> User: Displays customization options
-deactivate Controller
-
-alt Change placement of art pieces
-    
-    User -> Controller: Selects "Change placement of art pieces"
-    activate Controller
-    Controller -> RoomMgr: GalleryEdit(Placement)
-    deactivate Controller
-    activate RoomMgr
-    RoomMgr -> User: System: Enter "Gallery Edit Mode" 
-    RoomMgr -> User: Grants ability to move art pieces
-    deactivate RoomMgr
-    
-else Change Art Supplies
-    
-    User -> Controller: Selects "Change Art Supplies"
-    activate Controller
-    Controller -> ArtTools: GalleryEdit(ArtSupplies)
-    deactivate Controller
-    activate ArtTools
-    ArtTools -> User: System: Enter "Gallery Edit Mode" 
-    ArtTools -> User: Grants ability to add/delete colors in palette
-    deactivate ArtTools
-
-else Change wall color
-
-    User -> Controller: Selects "Change wall color" 
-    activate Controller
-    Controller -> RoomMgr: GalleryEdit(WallColor)
-    deactivate Controller
-    activate RoomMgr
-    RoomMgr -> User: System: Enter "Gallery Edit Mode" 
-    RoomMgr -> User: Grants ability to choose wall color
-    deactivate RoomMgr
-    
-end
-
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/customiseWorkspace/image.png b/uml/sequence diagrams/customiseWorkspace/image.png
deleted file mode 100644
index fa639fb1..00000000
Binary files a/uml/sequence diagrams/customiseWorkspace/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/customise_gallery/code.txt b/uml/sequence diagrams/customise_gallery/code.txt
deleted file mode 100644
index 1241c30b..00000000
--- a/uml/sequence diagrams/customise_gallery/code.txt	
+++ /dev/null
@@ -1,47 +0,0 @@
-@startuml
-actor User
-
-participant "HUD" as HUD
-participant "Controller/Input Manager" as Input
-participant "Room Manager" as Room
-participant "Auth Manager" as Auth
-participant "Art Tools Manager" as Tools
-participant "Network Manager" as Network
-participant "Event Logger" as Event
-
-User -> HUD : User selects "Customise gallery"
-HUD -> Input : Listen to input
-Input -> Auth : Check permissions
-
-alt User authorised
-  Auth -> Input : Reply with permissions
-  Input -> Room : Reply with permissions
-
-  loop For each customisation
-    Room -> Tools : Initialise tools
-    Tools -> Room : Forward tools to display
-    Room -> HUD : Forward loaded workspace with tools
-    HUD -> User : Display workspace with tools
-    User -> Input : Select a tool
-    Input -> Room : Log selected tool
-    Room -> Tools : Request functionality
-    Tools -> Input : Provide functionality
-    Input -> HUD : Display tool functionality
-    User -> Input : Select action
-    Input -> Network : Save the action
-
-    alt Log successful
-      Network -> Event : Saved
-      Network -> Room : Saved
-    else Log unsuccessful
-      Network -> Event : Unsaved
-      Network -> Room : Tool usage not saved
-      Room -> HUD : Saving error
-      HUD -> User : Display 'Error: Customisation not saved'
-    end
-  end
-else User unauthorised
-  Auth -> HUD : Send failed request
-  HUD -> User : Display "Access not permitted"
-end
-@enduml
diff --git a/uml/sequence diagrams/customise_gallery/code.wsd b/uml/sequence diagrams/customise_gallery/code.wsd
deleted file mode 100644
index 1241c30b..00000000
--- a/uml/sequence diagrams/customise_gallery/code.wsd	
+++ /dev/null
@@ -1,47 +0,0 @@
-@startuml
-actor User
-
-participant "HUD" as HUD
-participant "Controller/Input Manager" as Input
-participant "Room Manager" as Room
-participant "Auth Manager" as Auth
-participant "Art Tools Manager" as Tools
-participant "Network Manager" as Network
-participant "Event Logger" as Event
-
-User -> HUD : User selects "Customise gallery"
-HUD -> Input : Listen to input
-Input -> Auth : Check permissions
-
-alt User authorised
-  Auth -> Input : Reply with permissions
-  Input -> Room : Reply with permissions
-
-  loop For each customisation
-    Room -> Tools : Initialise tools
-    Tools -> Room : Forward tools to display
-    Room -> HUD : Forward loaded workspace with tools
-    HUD -> User : Display workspace with tools
-    User -> Input : Select a tool
-    Input -> Room : Log selected tool
-    Room -> Tools : Request functionality
-    Tools -> Input : Provide functionality
-    Input -> HUD : Display tool functionality
-    User -> Input : Select action
-    Input -> Network : Save the action
-
-    alt Log successful
-      Network -> Event : Saved
-      Network -> Room : Saved
-    else Log unsuccessful
-      Network -> Event : Unsaved
-      Network -> Room : Tool usage not saved
-      Room -> HUD : Saving error
-      HUD -> User : Display 'Error: Customisation not saved'
-    end
-  end
-else User unauthorised
-  Auth -> HUD : Send failed request
-  HUD -> User : Display "Access not permitted"
-end
-@enduml
diff --git a/uml/sequence diagrams/customise_gallery/sequence_diagram.png b/uml/sequence diagrams/customise_gallery/sequence_diagram.png
deleted file mode 100644
index f4da431a..00000000
Binary files a/uml/sequence diagrams/customise_gallery/sequence_diagram.png and /dev/null differ
diff --git a/uml/sequence diagrams/customise_gallery/updated.png b/uml/sequence diagrams/customise_gallery/updated.png
deleted file mode 100644
index 190d5c04..00000000
Binary files a/uml/sequence diagrams/customise_gallery/updated.png and /dev/null differ
diff --git a/uml/sequence diagrams/delete_account/code.txt b/uml/sequence diagrams/delete_account/code.txt
deleted file mode 100644
index 93e20a35..00000000
--- a/uml/sequence diagrams/delete_account/code.txt	
+++ /dev/null
@@ -1,38 +0,0 @@
-@startuml
-actor User
-
-participant "HUD" as HUD
-participant "Controller/Input Manager" as Input
-participant "Auth Manager" as Auth
-participant "Profile Manager" as Profile
-participant "Room Manager" as Room
-participant "Network Manager" as Network
-participant "Event Logger" as Event
-
-User -> HUD : Select "Delete Account"
-HUD -> Input : Button "Delete Account" clicked
-Input -> Auth : Check permissions
-Auth -> Input : Reply with permissions
-
-alt Permission granted
-Input -> Profile : Request deletion of the account
-Profile -> Network : Delete information
-
-alt Account deleted
-Network -> Event : Log deletion action
-Network -> Room : Load default gallery
-Room -> HUD : Change room view
-HUD -> User: Display new room
-else Account not deleted
-Network -> Event : Log deletion attempt
-Network -> Input : Unsuccessful attempt
-Input -> HUD : Forward error
-HUD -> User : Display "Account was not deleted"
-end
-
-else Permission denied
-Input -> HUD : Deny request
-HUD -> User : Display "Deletion not allowed"
-end
-
-@enduml
diff --git a/uml/sequence diagrams/delete_account/image.png b/uml/sequence diagrams/delete_account/image.png
deleted file mode 100644
index 6c39777f..00000000
Binary files a/uml/sequence diagrams/delete_account/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/implementation/artwork_persistence_flow.puml b/uml/sequence diagrams/implementation/artwork_persistence_flow.puml
new file mode 100644
index 00000000..ab60206f
--- /dev/null
+++ b/uml/sequence diagrams/implementation/artwork_persistence_flow.puml	
@@ -0,0 +1,41 @@
+@startuml
+
+
+title Sequence Diagram: Artwork Persistence Flow& Storage Sync
+
+actor User
+
+participant "PaintableSurfaceRT" as Surface
+participant "UI / Save Menu" as UI
+participant "SupabaseArtworkRepository" as ArtworkRepo
+participant "Supabase.Client (SDK)" as SupabaseSDK
+database "Local Disk" as Disk
+database "Supabase Storage" as Storage
+database "Supabase Database" as DB
+
+== Serialization ==
+User -> UI: Click Save Artwork
+UI -> Surface: SaveCanvasToPNG(fileName)
+Surface -> Surface: Texture2D.ReadPixels(RenderTexture)
+Surface -> Surface: tex.EncodeToPNG()
+Surface -> Disk: File.WriteAllBytes(path)
+Surface -> UI: Return localPath
+
+== Cloud Upload ==
+UI -> ArtworkRepo: CreateArtworkWithUploadAsync(artworkData, bytes)
+ArtworkRepo -> ArtworkRepo: Generate Thumbnail (GenerateHalfSizePng)
+ArtworkRepo -> SupabaseSDK: UploadObjectAsync(original)
+SupabaseSDK -> Storage: POST /storage/v1/object/artwork-images
+ArtworkRepo -> SupabaseSDK: UploadObjectAsync(thumbnail)
+SupabaseSDK -> Storage: POST /storage/v1/object/artwork-images
+
+== Metadata Sync ==
+ArtworkRepo -> ArtworkRepo: Set image_url & thumbnail_url
+ArtworkRepo -> SupabaseSDK: client.From<ArtworkData>().Insert(artwork)
+SupabaseSDK -> DB: INSERT INTO artwork
+DB -> SupabaseSDK: OK / Created Model
+SupabaseSDK -> ArtworkRepo: Return Model
+ArtworkRepo -> UI: Return Success
+UI -> User: Display "Saved Selection"
+
+@enduml
diff --git a/uml/sequence diagrams/implementation/authentication_flow.puml b/uml/sequence diagrams/implementation/authentication_flow.puml
new file mode 100644
index 00000000..225694f5
--- /dev/null
+++ b/uml/sequence diagrams/implementation/authentication_flow.puml	
@@ -0,0 +1,40 @@
+@startuml
+
+
+title Sequence Diagram: User Authentication & Role Management
+
+actor User
+participant "AuthenticationUIController" as UI
+participant "AuthenticationManager" as AuthManager
+participant "SupabaseClientManager" as ClientManager
+participant "SupabaseArtistRepository" as ArtistRepo
+participant "Supabase.Client (SDK)" as SupabaseSDK
+database "Supabase Auth" as AuthDB
+database "Supabase Database" as DB
+
+== Initialization ==
+AuthManager -> ClientManager: InitializeAsync()
+ClientManager -> SupabaseSDK: Create Instance
+AuthManager -> ArtistRepo: Create(SupabaseClientWrapper)
+
+== Login Flow ==
+User -> UI: Enter Credentials & Click Login
+UI -> AuthManager: LoginUser(email, password)
+AuthManager -> SupabaseSDK: client.Auth.SignIn(email, password)
+SupabaseSDK -> AuthDB: Authenticate
+AuthDB -> SupabaseSDK: Return Session
+SupabaseSDK -> AuthManager: Return Session
+AuthManager -> UI: Invoke OnUserLoggedIn
+
+== Role Fetching ==
+AuthManager -> ArtistRepo: GetArtistProfileAsync(userId)
+ArtistRepo -> SupabaseSDK: client.From<ArtistProfile>().Where(auth_user_id == userId).Single()
+SupabaseSDK -> DB: Query Profile
+DB -> SupabaseSDK: Profile Data
+SupabaseSDK -> ArtistRepo: Return Profile
+ArtistRepo -> AuthManager: Return Profile
+AuthManager -> AuthManager: Determine Role (e.g. Artist)
+AuthManager -> UI: Invoke OnUserRoleChanged(role)
+UI -> User: Display Success & User Role
+
+@enduml
diff --git a/uml/sequence diagrams/implementation/gallery_spawning_flow.puml b/uml/sequence diagrams/implementation/gallery_spawning_flow.puml
new file mode 100644
index 00000000..bfd6e31e
--- /dev/null
+++ b/uml/sequence diagrams/implementation/gallery_spawning_flow.puml	
@@ -0,0 +1,43 @@
+@startuml
+
+
+title Sequence Diagram: Data-Driven Gallery Spawning
+
+actor User
+participant "GameManager" as GM
+participant "SupabaseGalleryRepository" as GalleryRepo
+participant "Supabase.Client (SDK)" as SupabaseSDK
+participant "CanvasSpawner" as Spawner
+participant "PaintableSurfaceRT" as Surface
+database "Supabase Database" as DB
+
+== Gallery Data Fetch ==
+User -> GM: Entry to Gallery Scene
+GM -> GM: LoadScene("Gallery")
+GM -> GalleryRepo: GetGalleryAsync(galleryId)
+GalleryRepo -> SupabaseSDK: client.From<Gallery>().Where(id == gid).Single()
+SupabaseSDK -> DB: SELECT * FROM gallery
+DB -> SupabaseSDK: Gallery Data (including artwork_ids)
+SupabaseSDK -> GalleryRepo: Return Gallery Model
+GalleryRepo -> GM: Return GalleryData
+
+== Artwork Path Fetch and Canvas Initialization ==
+GM -> GalleryRepo : GetArtworkPaths(galleryId)
+activate GalleryRepo
+GalleryRepo -> SupabaseSDK : Query artworks for gallery
+SupabaseSDK -->> GalleryRepo : List of path metadata
+GalleryRepo -->> GM : Dictionary<int, (image_url, thumb_url)>
+deactivate GalleryRepo
+
+loop for each slot in dictionary
+    GM -> SupabaseSDK : Download texture (image_url)
+    SupabaseSDK -->> GM : Byte array / Texture2D
+    GM -> Surface : SetBackground(texture)
+    activate Surface
+    Surface -> Surface : Graphics.Blit to RenderTexture
+    Surface -->> GM : Success
+    deactivate Surface
+end
+
+GM -> GM: Notify "Gallery Ready"
+@enduml
diff --git a/uml/sequence diagrams/implementation/gpu_painting_flow.puml b/uml/sequence diagrams/implementation/gpu_painting_flow.puml
new file mode 100644
index 00000000..3a49a8c3
--- /dev/null
+++ b/uml/sequence diagrams/implementation/gpu_painting_flow.puml	
@@ -0,0 +1,45 @@
+@startuml
+
+
+title Sequence Diagram: GPU-Based Painting Flow (Blit Ping-Pong)
+actor User
+participant "XR Controller" as Controller
+participant "XRPainterRayInput" as RayInput
+participant "BrushToolState" as BrushState
+participant "PaintableSurfaceRT" as Surface
+participant "Graphics (GPU)" as GPU
+participant "BrushBlit.shader" as Shader
+
+== Stroke Start ==
+User -> Controller: Pull Trigger
+Controller -> RayInput: Action Triggered
+RayInput -> RayInput: Physics.Raycast()
+RayInput -> Surface: GetComponent<PaintableSurfaceRT>()
+RayInput -> Surface: TryPaintAt(uv)
+
+== Drawing Loop (Every Frame) ==
+loop while Trigger Held
+    User -> Controller: Move Position/Rotation
+    RayInput -> RayInput: Calculate Intersecting UV
+    RayInput -> BrushState: Get Current Brush (Color, Radius, Hardness)
+    RayInput -> Surface: PaintAt(uv, brushState)
+    
+    Surface -> Shader: Set Params (_BrushTex, _BrushColor, _BrushParams)
+    Surface -> GPU: Graphics.Blit(Buffer_A, Buffer_B, brushBlitMaterial)
+    
+    note right of GPU
+        Shader reads Buffer_A,
+        applies brush at UV,
+        outputs to Buffer_B.
+    end note
+    
+    GPU -> Surface: Blit Complete
+    Surface -> Surface: Swap Buffers (Buffer_A, Buffer_B)
+    Surface -> Surface: ApplyToRenderer(Buffer_A)
+    Surface -> GPU: Update Material _MainTex/_BaseMap
+end
+
+== Stroke End ==
+User -> Controller: Release Trigger
+RayInput -> RayInput: EndStroke()
+@enduml
diff --git a/uml/sequence diagrams/interact_with_an_art_piece/Interact_With_Art_Piece.png b/uml/sequence diagrams/interact_with_an_art_piece/Interact_With_Art_Piece.png
new file mode 100644
index 00000000..74d784e8
Binary files /dev/null and b/uml/sequence diagrams/interact_with_an_art_piece/Interact_With_Art_Piece.png differ
diff --git a/uml/sequence diagrams/interact_with_an_art_piece/uml.txt b/uml/sequence diagrams/interact_with_an_art_piece/uml.txt
index 8b27deea..3b57c398 100644
--- a/uml/sequence diagrams/interact_with_an_art_piece/uml.txt	
+++ b/uml/sequence diagrams/interact_with_an_art_piece/uml.txt	
@@ -5,49 +5,21 @@ participant "HUD" as HUD
 participant "Room Manager" as Room
 participant "Canvas" as Canvas
 participant "Network Manager" as Network
-participant "Event Logger" as Logger
 
-title Interact with an Art Piece
+title Interact with an Art Piece (Swap)
 
-User -> Input: walks up to an art piece (threshold reached)
-Input -> Room: notifies proximity event
-Room -> HUD: highlight nearby art piece
-HUD -> User: art piece highlighted (interaction mode available)
-
-User -> Input: selects the highlighted art piece
-Input -> Room: confirm art piece selection
-Room -> Canvas: request art piece details (metadata, available interactions)
-Canvas -> Network: fetch metadata / related media
-Network -> Canvas: send art data and multimedia
-Canvas -> HUD: display interaction options (zoom, rotate, info, etc.)
-HUD -> User: shows options to interact with the art piece
-
-User -> Input: selects an interaction option (e.g., zoom/rotate/show info)
-Input -> Canvas: send chosen command
-Canvas -> Room: update art display according to user action
-Room -> HUD: render visual change or playback multimedia
-HUD -> User: updated art interaction view
-Canvas -> Logger: log user interaction
-
-alt Selection via Controller
-    User -> Input: uses controller pointer to select art piece
-    Input -> Room: confirm art piece selection
-    Room -> HUD: highlight and enter interaction mode
-end
+User -> Input: uses controller pointer to select art piece
+HUD -> User: Choose art to swap with
+Input -> Room: confirm arts pieces selection
+Room -> Canvas: request arts pieces details
+Canvas -> Network: fetch arts pieces data (ID,gallery slot,path)
+Network -> Canvas: send arts pieces data
+Canvas -> Room: update arts pieces display according to users action and re-render
 
 alt Network Failure
     Canvas -> Network: request art data
     Network --> Canvas: error / timeout
     Canvas -> HUD: show error notification ("Unable to load art details")
-    HUD -> Logger: log network error
-end
-
-alt Exit Interaction Mode
-    User -> Input: exits interaction mode
-    Input -> Room: notify exit event
-    Room -> HUD: revert to free-move mode
-    HUD -> User: normal navigation restored
-    Room -> Logger: log exit interaction
 end
 
-@enduml
+@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/review_submission_req/image.png b/uml/sequence diagrams/review_submission_req/image.png
deleted file mode 100644
index e86340aa..00000000
Binary files a/uml/sequence diagrams/review_submission_req/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/review_submission_req/uml.txt b/uml/sequence diagrams/review_submission_req/uml.txt
deleted file mode 100644
index 926c636c..00000000
--- a/uml/sequence diagrams/review_submission_req/uml.txt	
+++ /dev/null
@@ -1,65 +0,0 @@
-@startuml
-title Review a Submission Request
-
-actor "Signed-in User" as User
-participant "HUD" as HUD
-participant "Security Manager" as Sec
-participant "Profile Manager" as Prof
-participant "Network Manager" as Net
-participant "Room Manager" as Room
-participant "Canvas" as Canvas
-participant "Collaboration/Communication" as Collab
-participant "Event Logger" as Log
-actor "Artist (Submitter)" as Artist
-
-' ============== TRIGGER ==============
-User ->> HUD: Click "Review" on submission notification
-HUD ->> Sec: Verify session/auth
-Sec --> HUD: Auth OK (user owns gallery)
-Log --> Log: Log: SubmissionReview.Open
-
-' ============== LOAD SUBMISSION DETAILS ==============
-HUD ->> Room: Get pending submission details (submissionId)
-Room ->> Canvas: Fetch artwork preview/meta (title, artists, desc)
-Canvas --> Room: Artwork meta + preview ref
-Room --> HUD: Submission details
-HUD --> User: Show artwork, title, artists, description\nShow Accept / Reject buttons
-Log --> Log: Log: SubmissionReview.DetailsShown
-
-' ============== DECISION BRANCH ==============
-alt User clicks "Accept"
-  HUD ->> HUD: Prompt message textbox for feedback
-  User ->> HUD: Enter acceptance message + Send
-  Log --> Log: Log: SubmissionReview.AcceptClicked
-
-  ' Apply change to gallery
-  HUD ->> Room: Approve submission(submissionId)
-  Room ->> Canvas: Add artwork to gallery (place/slot, metadata)
-  Canvas --> Room: Added OK (asset id / placement)
-  Room ->> Net: Broadcast gallery update (artwork added)
-  Net --> HUD: Update gallery view (new artwork visible)
-  Log --> Log: Log: SubmissionReview.ArtworkAdded
-
-  ' Notify artist
-  HUD ->> Collab: Send acceptance message to artist
-  Collab --> Artist: Notification: Submission accepted + feedback
-  Log --> Log: Log: SubmissionReview.AcceptanceNotified
-
-  HUD --> User: Confirmation: Artwork added to your gallery
-else User clicks "Reject"
-  HUD ->> HUD: Prompt message textbox for feedback
-  User ->> HUD: Enter rejection message + Send
-  Log --> Log: Log: SubmissionReview.RejectClicked
-
-  ' Mark as rejected (no gallery change)
-  HUD ->> Room: Reject submission(submissionId)
-  Room --> HUD: Marked rejected
-  Log --> Log: Log: SubmissionReview.MarkedRejected
-
-  ' Notify artist
-  HUD ->> Collab: Send rejection notice + feedback
-  Collab --> Artist: Notification: Submission rejected + feedback
-  HUD --> User: Confirmation: Rejection sent to artist
-end
-
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/review_submission_req/uml.wsd b/uml/sequence diagrams/review_submission_req/uml.wsd
deleted file mode 100644
index 53a9117c..00000000
--- a/uml/sequence diagrams/review_submission_req/uml.wsd	
+++ /dev/null
@@ -1,93 +0,0 @@
-@startuml
-title Review a Submission Request
-
-actor "Signed-in User" as User
-participant "HUD" as HUD
-participant "Security Manager" as Sec
-participant "Profile Manager" as Prof
-participant "Network Manager" as Net
-participant "Room Manager (incl. submissions)" as Room
-participant "Canvas (Artwork Loader/Store)" as Canvas
-participant "Collaboration/Communication" as Collab
-participant "Event Logger" as Log
-actor "Artist (Submitter)" as Artist
-
-' ============== TRIGGER ==============
-User ->> HUD: Click "Review" on submission notification
-HUD ->> Sec: Verify session/auth
-Sec --> HUD: Auth OK (user owns gallery)
-Log --> Log: Log: SubmissionReview.Open
-
-' ============== LOAD SUBMISSION DETAILS ==============
-HUD ->> Room: Get pending submission details (submissionId)
-Room ->> Canvas: Fetch artwork preview/meta (title, artists, desc)
-Canvas --> Room: Artwork meta + preview ref
-Room --> HUD: Submission details
-HUD --> User: Show artwork, title, artists, description\nShow Accept / Reject buttons
-Log --> Log: Log: SubmissionReview.DetailsShown
-
-' ============== DECISION BRANCH ==============
-alt User clicks "Accept"
-  HUD ->> HUD: Prompt message textbox for feedback
-  User ->> HUD: Enter acceptance message + Send
-  Log --> Log: Log: SubmissionReview.AcceptClicked
-
-  ' Apply change to gallery
-  HUD ->> Room: Approve submission(submissionId)
-  Room ->> Canvas: Add artwork to gallery (place/slot, metadata)
-  Canvas --> Room: Added OK (asset id / placement)
-  Room ->> Net: Broadcast gallery update (artwork added)
-  Net --> HUD: Update gallery view (new artwork visible)
-  Log --> Log: Log: SubmissionReview.ArtworkAdded
-
-  ' Notify artist
-  HUD ->> Collab: Send acceptance message to artist
-  Collab --> Artist: Notification: Submission accepted + feedback
-  Log --> Log: Log: SubmissionReview.AcceptanceNotified
-
-  HUD --> User: Confirmation: Artwork added to your gallery
-else User clicks "Reject"
-  HUD ->> HUD: Prompt message textbox for feedback
-  User ->> HUD: Enter rejection message + Send
-  Log --> Log: Log: SubmissionReview.RejectClicked
-
-  ' Mark as rejected (no gallery change)
-  HUD ->> Room: Reject submission(submissionId)
-  Room --> HUD: Marked rejected
-  Log --> Log: Log: SubmissionReview.MarkedRejected
-
-  ' Notify artist
-  HUD ->> Collab: Send rejection notice + feedback
-  Collab --> Artist: Notification: Submission rejected + feedback
-  HUD --> User: Confirmation: Rejection sent to artist
-end
-
-' ============== POST INTERACTION (COMMON) ==============
-par UI Refresh
-  HUD ->> Room: Refresh pending submissions list
-  Room --> HUD: Updated queue
-else Telemetry
-  Log --> Log: Log: SubmissionReview.Completed
-end
-
-' ============== NOTES ==============
-note over HUD
-Trigger: Notification on gallery page indicates a pending submission.
-User clicks "Review".
-end note
-
-note over Sec
-Precondition: A user (artist) has submitted artwork to this gallery.
-Only signed-in owners can review.
-end note
-
-note over Collab
-Special Requirement: Notification system for requests and feedback.
-end note
-
-note over Room, Canvas
-Postconditions (Accept): Artwork is added to the gallery.
-Postconditions (Reject): Artwork not added; artist receives feedback.
-end note
-
-@enduml
diff --git a/uml/sequence diagrams/signoff/Screenshot_2025-11-03_13-55-03.png b/uml/sequence diagrams/signoff/Screenshot_2025-11-03_13-55-03.png
deleted file mode 100644
index 6737683d..00000000
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diff --git a/uml/sequence diagrams/signoff/signoff.png b/uml/sequence diagrams/signoff/signoff.png
deleted file mode 100644
index 09eacd4a..00000000
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diff --git a/uml/sequence diagrams/signoff/signoff.txt b/uml/sequence diagrams/signoff/signoff.txt
deleted file mode 100644
index 01bb14df..00000000
--- a/uml/sequence diagrams/signoff/signoff.txt	
+++ /dev/null
@@ -1,13 +0,0 @@
-@startuml
-actor user
-participant "controller/input manager" as input
-participant "hud" as hud
-participant "Security Manager" as auth
-participant "Even Logger" as log
-
-user -> input : user opens hud
-input -> hud : user selects sign off
-log -> log : logs the sign off activity.
-hud -> auth : triggers the action to log off
-auth -> user : Sends a message and logs off
-@enduml
diff --git a/uml/sequence diagrams/signup/signup.png b/uml/sequence diagrams/signup/signup.png
deleted file mode 100644
index 115dc618..00000000
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diff --git a/uml/sequence diagrams/signup/signup.puml b/uml/sequence diagrams/signup/signup.puml
deleted file mode 100644
index 1eaf6250..00000000
--- a/uml/sequence diagrams/signup/signup.puml	
+++ /dev/null
@@ -1,17 +0,0 @@
-@startuml
-actor User
-participant "Controller/Input Manager" as Input
-participant "HUD" as HUD
-participant "Profile Manager" as UserMgr
-participant "Security Manager" as Auth
-participant "Room Manager" as Room
-participant "Event Logger" as Log
-User -> Input : User inputs credentials
-Input -> HUD : Forwards credentials
-Log -> Log : Logs all the actions
-HUD -> UserMgr: Creates a user
-log -> log : Logs the user interaction
-UserMgr -> Auth : Registers user
-log -> log : Logs the system crud operation
-Auth -> Room : Loads default gallery
-@enduml
diff --git a/uml/sequence diagrams/submit_an_art_piece/submit_an_art_piece.png b/uml/sequence diagrams/submit_an_art_piece/submit_an_art_piece.png
deleted file mode 100644
index 54cdb1bf..00000000
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diff --git a/uml/sequence diagrams/submit_an_art_piece/uml.txt b/uml/sequence diagrams/submit_an_art_piece/uml.txt
deleted file mode 100644
index f164d101..00000000
--- a/uml/sequence diagrams/submit_an_art_piece/uml.txt	
+++ /dev/null
@@ -1,19 +0,0 @@
-@startuml
-actor User
-participant "Controller/Input Manager" as Input
-participant "HUD" as HUD
-participant "Room Manager" as Room
-participant "Auth Manager" as Auth
-
-User -> Input: clicks on submit on a art piece
-Input -> HUD: interacts
-HUD -> Auth: sends user info to authenticate
-Auth -> HUD: sends auth status
-HUD -> Room: calls to display galleries
-Room -> HUD: displays galleries
-HUD -> User: sees the galleries
-User -> Input: clicks on gallery they want to submit to
-Input -> HUD: sends gallery info
-HUD -> Room: submits the art piece to selected gallery
-
-@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/use_cases/Browse_And_Join_Gallery/uml.puml b/uml/sequence diagrams/use_cases/Browse_And_Join_Gallery/uml.puml
new file mode 100644
index 00000000..69a45caa
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Browse_And_Join_Gallery/uml.puml	
@@ -0,0 +1,63 @@
+@startuml
+title Browse/Join Rooms
+
+' ============== ACTORS & COMPONENTS ==============
+actor "User" as User
+participant "Controller/Input Manager" as Ctrl
+participant "HUD" as HUD
+participant "Network Manager" as Net
+participant "Voice Chat" as Voice
+
+' ============== TRIGGER ==============
+User ->> Ctrl : Opens Join Room
+Ctrl ->> HUD : Open "Join a Room"
+
+' ============== LISTING ==============
+HUD ->> Net : Poll live public rooms
+Net --> HUD : Live room list
+
+HUD --> User : Show: live public room list\n+ "Enter Code" input\n+ "Create Room" button
+
+User ->> Ctrl : Selects option
+
+' ============== FLOW A: Public Room from list ============
+alt Flow A — Join public room (from list)
+  User ->> Ctrl : Taps a room from list
+  Ctrl ->> HUD : Join selected room
+  HUD ->> Net : Join room
+  Net --> HUD : Status: Connecting…
+
+  Net ->> Net : Start client
+  Net --> HUD : Connected
+
+  HUD ->> Voice : Join voice channel
+  Voice --> User : Voice/chat active
+
+' ============== FLOW B: Join via Code ============
+else Flow B — Join via room code
+  User ->> Ctrl : Enters room code
+  Ctrl ->> HUD : Submit join code
+  HUD ->> Net : Join room by code
+
+  alt Code valid / room found
+    Net ->> Net : Set up relay
+    Net ->> Net : Start client
+    Net --> HUD : Connected
+
+    HUD ->> Voice : Join voice channel
+    Voice --> User : Voice/chat active
+
+  else Code invalid / room not found
+    Net --> HUD : Room not found
+    HUD --> User : Show error: "Room not found.\nPlease try a new code."
+  end
+
+' ============== FLOW C: Create Room ============
+else Flow C — Create room
+  User ->> Ctrl : Taps "Create Room"
+  Ctrl ->> HUD : Navigate to Create Room
+  HUD --> User : [See: Create Room use case]
+
+end
+
+@enduml
diff --git a/uml/sequence diagrams/use_cases/Browse_And_Join_Gallery/workflow.png b/uml/sequence diagrams/use_cases/Browse_And_Join_Gallery/workflow.png
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index 00000000..ddf50163
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diff --git a/uml/sequence diagrams/use_cases/Collaborate/uml.puml b/uml/sequence diagrams/use_cases/Collaborate/uml.puml
new file mode 100644
index 00000000..49b5922d
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Collaborate/uml.puml	
@@ -0,0 +1,94 @@
+@startuml
+title Sequence Diagram: Collaborate
+
+actor User
+participant "ControllerInput Manager" as Input
+participant "HUD" as HUD
+participant "Collaboration Manager" as Colab
+participant "Security Manager" as Auth
+participant "Network Manager" as Network
+participant "Room Manager" as Room
+participant "CanvasSpawner" as Spawner
+participant "CanvasBrushSpawner" as BrushSpawner
+participant "Art Tools (BrushToolState)" as Tools
+participant "Canvas (PaintableSurfaceRT)" as Canvas
+participant "CanvasStrokeSyncNgo" as StrokeSync
+participant "Event Logger" as Logger
+
+== User Joins a Shared Workspace ==
+User -> Input: Selects "Join a workspace"
+Logger -> Logger: Log SelectsJoinWorkspace
+Input -> HUD: Display code textbox
+User -> Input: Inputs code
+Input -> HUD: Submits code
+Logger -> Logger: Log code
+HUD -> Colab: Validates code
+Colab -> Auth: Sends user info
+Auth --> Colab: Authenticates user
+Colab -> Network: Load workspace instance
+Logger -> Logger: Log workspace info
+Network -> Room: Load workspace layout
+Room -> Canvas: Load artworks (SetBackground → Graphics.Blit to RenderTexture)
+
+== Brush & Canvas Spawn (on workspace load) ==
+Room -> Spawner: SpawnWorkspaceServerRpc(pos, rot)
+activate Spawner
+Spawner -> Spawner: Instantiate workspace prefab
+Spawner -> Spawner: NetworkObject.Spawn()
+Spawner -> BrushSpawner: SpawnBrush()
+BrushSpawner -> BrushSpawner: Instantiate paintbrush prefab at canvas offset
+BrushSpawner -> Network: NetworkObject.Spawn() — brush visible to all clients
+deactivate Spawner
+
+== User Collaborates on a Painting ==
+User -> Input: Selects canvas (walks up / ray points)
+Logger -> Logger: Log canvas selected
+Input -> Canvas: Zoom in (enter draw mode)
+
+User -> Input: Picks up brush (XR grab)
+Input -> Tools: BrushGrabState.OnGrabbed()
+Tools -> BrushSpawner: RequestReplacementBrushServerRpc() — spawn replacement for others
+Tools -> HUD: Show current brush color/radius
+
+loop While trigger held (every frame)
+    User -> Input: Pull trigger, move controller
+    Input -> Input: Physics.Raycast() → hit.textureCoord (UV)
+    Input -> Tools: GetHeldBrushToolState() → BrushState (color, radius, hardness)
+    Input -> StrokeSync: LocalStrokeBegin(strokeId, brushState) [first frame]
+    Input -> Canvas: TryPaintAt(uv, brushState)
+    Canvas -> Canvas: Graphics.Blit(BufferA → BufferB, brushBlitMaterial)
+    Canvas -> Canvas: Swap buffers (ping-pong)
+    Canvas -> Canvas: ApplyToRenderer(BufferA)
+    Input -> StrokeSync: LocalStrokePoints(strokeId, encodedUVs)
+    StrokeSync -> Network: BroadcastStroke RPC to all clients
+    Network --> Canvas: Remote clients paint same stroke
+end
+
+User -> Input: Release trigger
+Input -> StrokeSync: LocalStrokeEnd(strokeId)
+StrokeSync -> Network: Finalise stroke sync
+
+== User Saves Artwork ==
+User -> HUD: Click Save Artwork
+HUD -> Canvas: SaveCanvasToPNG(fileName)
+Canvas -> Canvas: Texture2D.ReadPixels(RenderTexture)
+Canvas -> Canvas: tex.EncodeToPNG()
+Canvas --> HUD: Return localPath
+
+note over StrokeSync, Network
+    CanvasStrokeSyncNgo handles all NGO RPCs.
+    No per-stroke auth call — auth happens at join time.
+    BrushRespawnOnGrab auto-despawns idle brushes after timeout.
+end note
+
+== User Messages Another User ==
+User -> Input: Selects chat
+Logger -> Logger: Log Chat selected
+Input -> HUD: Display chat
+User -> Input: Enters message
+Input -> HUD: Saves message
+Logger -> Logger: Log Message
+HUD -> Colab: Send message
+Colab -> Network: Broadcast to room
+
+@enduml
diff --git a/uml/sequence diagrams/use_cases/Collaborate/workflow.png b/uml/sequence diagrams/use_cases/Collaborate/workflow.png
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index 00000000..d4cd0533
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diff --git a/uml/sequence diagrams/use_cases/Communicate/uml.puml b/uml/sequence diagrams/use_cases/Communicate/uml.puml
new file mode 100644
index 00000000..b84ecd8e
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Communicate/uml.puml	
@@ -0,0 +1,39 @@
+@startuml
+actor User
+
+participant "Controllers" as Input
+participant "On-Screen Notifications" as HUD
+participant "Unity Vivox SDK" as CCM
+participant "Network Services" as NM
+
+
+== Voice Chat ==
+
+User -> NM : Authenticate and join session
+NM --> CCM : Voice access granted
+CCM -> NM : Join Voice channel
+CCM -> HUD : Show "Connected to Voice" message
+
+loop While moving
+    User -> Input : Move or turn head
+    Input -> CCM : Send new head position
+    CCM -> NM : Update voice location
+end
+
+alt Muting self
+    User -> HUD : Press Mute in Menu
+    HUD -> CCM : Turn off microphone
+    CCM -> NM : Tell network to stop sending audio
+    CCM -> HUD : Show "Mic: OFF"
+
+end
+
+== Public Text Chat ==
+
+User -> HUD : Type message in the UI chat box
+HUD -> CCM : Submit message locally
+CCM -> NM : Send message to server
+NM -> NM : Add to master message list
+NM --> CCM : Broadcast to all other users
+CCM -> HUD : Display message on everyone's screen
+@enduml
diff --git a/uml/sequence diagrams/use_cases/Communicate/workflow.png b/uml/sequence diagrams/use_cases/Communicate/workflow.png
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index 00000000..6c10f569
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diff --git a/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/image.png b/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/image.png
new file mode 100644
index 00000000..df41d455
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diff --git a/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/uml.puml b/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/uml.puml
new file mode 100644
index 00000000..43e1eb52
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/uml.puml	
@@ -0,0 +1,38 @@
+
+@startuml
+actor User
+participant "Input Manager" as Input
+participant "HUD Manager" as HUD
+participant "Room Manager" as Room
+participant "Auth Manager" as SM
+/'participant "Event Logger" as Logger'/
+
+title Create an art room
+
+== Basic Flow ==
+
+User -> Input: clicks on HUD icon
+/'Input -> Logger: log user event'/
+Input -> HUD: requests HUD
+User -> Input: clicks on create new room
+/'Input -> Logger: log user event'/
+Input -> HUD: validates and sends event information to HUD 
+/'Input -> Logger: log user event'/
+HUD -> User: modal with options (room name, privacy type) is opened
+User -> Input: Enters room's name and privacy type (public or private)
+/'Input -> Logger: log user event'/
+Input -> HUD: validates and sends event information to HUD
+HUD -> Room: requests a room with user information
+ 
+== Alternative Flow 1 – Private Room ==
+
+Room -> SM: creates a room and requests a security layer.
+SM -> Room: encrypts the room to make it private
+Room -> User: notifies creation of private room.
+
+
+== Alternative Flow 2 – Public Room ==
+
+Room -> User: notifies creation of public room
+
+@enduml
diff --git a/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/workflow.png b/uml/sequence diagrams/use_cases/Create_an_Art_Gallery/workflow.png
new file mode 100644
index 00000000..95a0e171
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diff --git a/uml/sequence diagrams/use_cases/Interact_with_an_Art_Piece/uml.puml b/uml/sequence diagrams/use_cases/Interact_with_an_Art_Piece/uml.puml
new file mode 100644
index 00000000..42da1353
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Interact_with_an_Art_Piece/uml.puml	
@@ -0,0 +1,82 @@
+@startuml
+title Sequence Diagram: Interact with an Art Piece
+
+actor User
+participant "ControllerInput Manager" as Input
+participant "HUD" as HUD
+participant "Room Manager" as Room
+participant "Canvas (PaintableSurfaceRT)" as Canvas
+participant "SupabaseArtworkRepository" as ArtworkRepo
+participant "Supabase SDK" as SDK
+participant "Network Manager" as Network
+participant "Event Logger" as Logger
+
+database "Supabase Storage" as Storage
+database "Supabase Database" as DB
+
+== Proximity Detection ==
+User -> Input: Walks up to an art piece (threshold reached)
+Input -> Room: Notifies proximity event
+Room -> HUD: Highlight nearby art piece
+HUD -> User: Art piece highlighted — interaction mode available
+
+== Art Piece Selection ==
+User -> Input: Selects the highlighted art piece
+Input -> Room: Confirm art piece selection
+Room -> ArtworkRepo: GetArtworkPaths(artworkId)
+activate ArtworkRepo
+ArtworkRepo -> SDK: Query artworks WHERE id = artworkId
+SDK -> DB: SELECT image_url, thumbnail_url FROM artwork
+DB --> SDK: Artwork metadata
+SDK --> ArtworkRepo: Return path metadata
+ArtworkRepo --> Room: Return (image_url, thumbnail_url)
+deactivate ArtworkRepo
+
+Room -> SDK: Download texture (image_url)
+SDK -> Storage: GET /storage/v1/object/artwork-images
+Storage --> SDK: Byte array
+SDK --> Room: Texture2D
+
+Room -> Canvas: SetBackground(texture)
+activate Canvas
+Canvas -> Canvas: Graphics.Blit(texture → RenderTexture, ping-pong)
+Canvas --> Room: Success
+deactivate Canvas
+
+Canvas -> HUD: Display interaction options (zoom, rotate, info, etc.)
+HUD -> User: Shows interaction options
+
+== Interaction ==
+User -> Input: Selects an interaction option (e.g. zoom / rotate / show info)
+Input -> Canvas: Send chosen command
+Canvas -> Room: Update art display according to user action
+Room -> HUD: Render visual change or playback multimedia
+HUD -> User: Updated art interaction view
+Canvas -> Logger: Log user interaction
+
+alt Selection via Controller
+    User -> Input: Uses controller pointer to select art piece
+    Input -> Room: Confirm art piece selection
+    Room -> HUD: Highlight and enter interaction mode
+end
+
+alt Network / Storage Failure
+    SDK --> Room: Error / timeout
+    Room -> HUD: Show error notification "Unable to load art details"
+    HUD -> Logger: Log network error
+end
+
+alt Exit Interaction Mode
+    User -> Input: Exits interaction mode
+    Input -> Room: Notify exit event
+    Room -> HUD: Revert to free-move mode
+    HUD -> User: Normal navigation restored
+    Room -> Logger: Log exit interaction
+end
+
+note over ArtworkRepo, Storage
+    Artwork textures are fetched from Supabase Storage
+    and seeded into PaintableSurfaceRT via Graphics.Blit.
+    DisplayOnly mode — painting is disabled during viewing.
+end note
+@enduml
diff --git a/uml/sequence diagrams/interact_with_an_art_piece/image.png b/uml/sequence diagrams/use_cases/Interact_with_an_Art_Piece/workflow.png
similarity index 100%
rename from uml/sequence diagrams/interact_with_an_art_piece/image.png
rename to uml/sequence diagrams/use_cases/Interact_with_an_Art_Piece/workflow.png
diff --git a/uml/sequence diagrams/use_cases/Sign_In/signIn.png b/uml/sequence diagrams/use_cases/Sign_In/signIn.png
new file mode 100644
index 00000000..0e77a488
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diff --git a/uml/sequence diagrams/use_cases/Sign_In/uml.puml b/uml/sequence diagrams/use_cases/Sign_In/uml.puml
new file mode 100644
index 00000000..0dc10969
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Sign_In/uml.puml	
@@ -0,0 +1,51 @@
+@startuml
+title Sign In
+
+actor "User" as User
+participant "Controller/Input Manager" as Input
+participant "HUD" as HUD
+participant "Authentication UI" as AuthUI
+participant "Authentication Manager" as AuthMgr
+participant "Supabase Client" as Supa
+participant "Game Manager" as GameMgr
+
+
+alt Already authenticated
+    AuthMgr --> AuthUI : User logged in
+    AuthUI --> User : Hide auth UI
+
+else Not authenticated
+    AuthUI --> User : Show login panel
+
+    User ->> AuthUI : Enter email + password
+    AuthUI ->> AuthUI : Validate input
+
+    alt Validation fails
+        AuthUI --> User : Log error message
+
+    else Validation passes
+        AuthUI ->> AuthMgr : Login
+
+        AuthMgr ->> Supa : Sign in
+        Supa --> AuthMgr : Session + User
+
+        alt Sign in failed
+            AuthMgr --> AuthUI : Error
+            AuthUI --> User : Log error message
+
+        else Sign in succeeded
+            AuthMgr --> AuthUI : Logged in
+            AuthMgr --> GameMgr : Logged in event
+            GameMgr ->> GameMgr : Update auth state
+            AuthUI --> User : Hide auth UI
+            GameMgr ->> User : Load gallery
+        end
+    end
+end
+
+@enduml
+
+
+
+
+
diff --git a/uml/sequence diagrams/use_cases/Sign_Off/uml.puml b/uml/sequence diagrams/use_cases/Sign_Off/uml.puml
new file mode 100644
index 00000000..3af2c63d
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Sign_Off/uml.puml	
@@ -0,0 +1,37 @@
+@startuml
+title Sign Off
+
+actor User as User
+participant "Controller/Input Manager" as Input
+participant "HUD" as HUD
+participant "AuthenticationUI" as AuthUI
+participant "AuthenticationManager" as AuthMgr
+participant "SupabaseClient\n(via SupabaseClientManager)" as Supa
+participant "Event Logger" as Log
+
+User -> Input : Opens HUD
+Input -> HUD : Show HUD
+HUD -> AuthUI : Display authenticated panel
+AuthUI -> User : Show "Logout" button
+
+User -> AuthUI : Clicks Logout
+AuthUI -> AuthUI : ShowLoadingPanel()
+AuthUI -> AuthMgr : LogoutUser()
+Log -> Log : Log sign-off activity
+
+AuthMgr -> Supa : Auth.SignOut()
+
+alt Sign out failed
+    Supa --> AuthMgr : Exception
+    AuthMgr -> AuthMgr : OnAuthenticationError?.Invoke("Logout failed")
+    AuthUI -> AuthUI : HandleAuthenticationError()
+    AuthUI -> User : Show error message
+else Sign out succeeded
+    Supa --> AuthMgr : OK
+    AuthMgr -> AuthMgr : CurrentSession = null\nOnUserLoggedOut?.Invoke()
+    Log -> Log : Log user signed out
+    AuthUI -> AuthUI : HandleUserLoggedOut()
+    AuthUI -> AuthUI : ShowLoginPanel()\n[shows door object if configured]
+    AuthUI -> User : Display Login panel
+end
+@enduml
diff --git a/uml/sequence diagrams/use_cases/Sign_Off/workflow.png b/uml/sequence diagrams/use_cases/Sign_Off/workflow.png
new file mode 100644
index 00000000..cb8a179a
Binary files /dev/null and b/uml/sequence diagrams/use_cases/Sign_Off/workflow.png differ
diff --git a/uml/sequence diagrams/use_cases/Sign_Up/signUp.png b/uml/sequence diagrams/use_cases/Sign_Up/signUp.png
new file mode 100644
index 00000000..38312b76
Binary files /dev/null and b/uml/sequence diagrams/use_cases/Sign_Up/signUp.png differ
diff --git a/uml/sequence diagrams/use_cases/Sign_Up/uml.puml b/uml/sequence diagrams/use_cases/Sign_Up/uml.puml
new file mode 100644
index 00000000..126b4c11
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Sign_Up/uml.puml	
@@ -0,0 +1,59 @@
+@startuml
+title Sign Up
+
+actor "User" as User
+participant "Controller/Input Manager" as Input
+participant "HUD" as HUD
+participant "Authentication UI" as AuthUI
+participant "Authentication Manager" as AuthMgr
+participant "Supabase Client" as Supa
+participant "Artist Repository" as ArtistRepo
+
+
+alt Already authenticated
+    AuthMgr --> AuthUI : User logged in
+    AuthUI --> User : Hide auth UI
+
+else Not authenticated
+    AuthUI --> User : Show login panel
+
+    User ->> AuthUI : Clicks "Register"
+    AuthUI --> User : Show register panel
+
+    User ->> AuthUI : Enter email, password, username
+    AuthUI ->> AuthUI : Validate input
+
+    alt Validation fails
+        AuthUI --> User : Log error message
+
+    else Validation passes
+        AuthUI ->> AuthMgr : Register
+
+        AuthMgr ->> Supa : Sign up
+        Supa --> AuthMgr : Session + User
+
+        alt Sign up failed
+            AuthMgr --> AuthUI : Error
+            AuthUI --> User : Log serror message
+            AuthUI --> User : Show register panel
+
+        else Sign up succeeded
+            AuthMgr ->> ArtistRepo : Create artist profile
+            ArtistRepo ->> Supa : Insert into artists table
+
+            alt Profile creation failed
+                ArtistRepo --> AuthMgr : false
+                AuthMgr --> AuthUI : Success (profile warning logged)
+            else Profile created
+                ArtistRepo --> AuthMgr : true
+                AuthMgr --> AuthUI : Success
+            end
+
+            AuthUI --> User : Show login panel
+        end
+    end
+end
+
+@enduml
+
+
diff --git a/uml/sequence diagrams/use_cases/Work_on_Artwork/Work_On_Artwork.png b/uml/sequence diagrams/use_cases/Work_on_Artwork/Work_On_Artwork.png
new file mode 100644
index 00000000..5c547297
Binary files /dev/null and b/uml/sequence diagrams/use_cases/Work_on_Artwork/Work_On_Artwork.png differ
diff --git a/uml/sequence diagrams/use_cases/Work_on_Artwork/Work_On_Artwork.puml b/uml/sequence diagrams/use_cases/Work_on_Artwork/Work_On_Artwork.puml
new file mode 100644
index 00000000..41ffa781
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Work_on_Artwork/Work_On_Artwork.puml	
@@ -0,0 +1,82 @@
+@startuml
+title Work on Artwork
+
+' ============== ACTORS & COMPONENTS ==============
+actor "User" as User
+participant "Controller/Input Manager" as Ctrl
+participant "HUD" as HUD
+participant "Artwork Session / Network Manager" as Net
+participant "Brush Tool State" as Brush
+participant "Canvas Stroke Sync" as StrokeSync
+participant "Canvas" as Canvas
+participant "Authentication Manager" as Auth
+participant "Artwork Repository / Supabase" as Cloud
+
+' ============== TRIGGER ==============
+User ->> HUD : Request "Create Room"
+HUD ->> Net : Create or join room/workspace
+User ->> HUD : Request "Create Canvas"
+
+' ============== ENTRY ==============
+
+Net --> HUD : Status: Connecting...
+Net ->> Net : Start host/client session
+Net --> HUD : Connected
+HUD --> User : Workspace opened
+' ============== ENTRY ==============
+HUD -> Net : requests creation of workspace in room
+Net --> HUD : status: Connecting...
+Net -> Net : start host/client session
+Net --> HUD : Connected
+HUD --> User : workspace opened
+
+' ============== WORKFLOW A: Paint on artwork ============
+alt Flow A — Draw on artwork
+  User ->> Ctrl : Grabs brush and presses draw
+  Ctrl ->> Brush : Get current brush state
+  Brush --> Ctrl : Colour / radius / hardness
+
+  Ctrl ->> Canvas : Raycast hit on artwork surface
+
+  alt Synced collaborative artwork
+    Ctrl ->> StrokeSync : Begin local stroke
+    StrokeSync ->> StrokeSync : Send stroke begin over network
+
+    loop While drawing
+      Ctrl ->> Canvas : Apply local paint at UV
+      Ctrl ->> StrokeSync : Send stroke points
+      StrokeSync ->> StrokeSync : Broadcast stroke points
+      StrokeSync ->> Canvas : Apply synced paint ops
+    end
+
+    User ->> Ctrl : Releases draw input
+    Ctrl ->> StrokeSync : End local stroke
+    StrokeSync ->> StrokeSync : Send stroke end over network
+
+  else Local-only artwork
+    loop While drawing
+      Ctrl ->> Canvas : Apply local paint at UV
+    end
+  end
+
+' ============== WORKFLOW B: Upload artwork ============
+else Flow B — Upload artwork to cloud
+  User ->> Ctrl : Clicks "Upload Artwork"
+  Ctrl ->> HUD : Request upload
+  HUD ->> Auth : Check authentication state
+
+  alt User logged in
+    Auth --> HUD : Authenticated
+    HUD ->> Canvas : Export artwork image
+    Canvas --> HUD : Image data / file path
+    HUD ->> Cloud : Create artwork record + upload image
+    Cloud --> HUD : Upload success
+    HUD --> User : Show success: "Artwork uploaded"
+
+  else User not logged in
+    Auth --> HUD : Not authenticated
+    HUD --> User : Show error: "Log in or sign up to upload artwork."
+  end
+end
+
+@enduml
\ No newline at end of file
diff --git a/uml/sequence diagrams/use_cases/Work_on_Artwork/uml.puml b/uml/sequence diagrams/use_cases/Work_on_Artwork/uml.puml
new file mode 100644
index 00000000..6dc47cd9
--- /dev/null
+++ b/uml/sequence diagrams/use_cases/Work_on_Artwork/uml.puml	
@@ -0,0 +1,45 @@
+@startuml
+actor User
+participant "Controller/Input Manager" as Input
+participant "HUD" as HUD
+participant "Network Manager" as Net
+participant "Art Tools" as Tools
+participant "Canvas" as Canvas
+participant "Security Manager" as Auth
+participant "Event Logger" as Logger
+
+== Session Entry ==
+Canvas -> Auth : requests authentication
+Auth -> Canvas : authenticates session
+
+== Canvas Selection ==
+User -> Input : selects canvas
+Input -> Canvas : zooms in
+Logger -> Logger : Log: Canvas selected
+
+== Brush Pickup (Physical/Networked) ==
+User -> Input : physically grabs brush (XR grab)
+Input -> Net : RequestReplacementBrush (ServerRpc)
+Net -> Tools : spawns replacement brush for all clients
+Logger -> Logger : Log: Brush grabbed
+
+== Painting (Stroke-Synced) ==
+User -> Input : draws on canvas
+Input -> Tools : begin stroke (LocalStrokeBegin)
+Tools -> Net : sync stroke points (LocalStrokePoints)
+Net -> Canvas : updates canvas for all clients
+Logger -> Logger : Log: Canvas updated
+
+== Color Selection (Optional) ==
+alt User changes brush color
+    User -> Input : grabs color bucket / cycles presets
+    Input -> Tools : updates BrushToolState color
+    Tools -> Canvas : next stroke uses new color
+end
+
+== Exit ==
+User -> Input : clicks exit
+Logger -> Logger : Log: Canvas exited
+Input -> HUD : exits canvas
+Input -> Canvas : unzooms
+@enduml
diff --git a/uml/sequence diagrams/use_cases/Work_on_Artwork/workflow.png b/uml/sequence diagrams/use_cases/Work_on_Artwork/workflow.png
new file mode 100644
index 00000000..cac2d24d
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diff --git a/uml/sequence diagrams/work on artwork/image.png b/uml/sequence diagrams/work on artwork/image.png
deleted file mode 100644
index 869f479a..00000000
Binary files a/uml/sequence diagrams/work on artwork/image.png and /dev/null differ
diff --git a/uml/sequence diagrams/work on artwork/work.txt b/uml/sequence diagrams/work on artwork/work.txt
deleted file mode 100644
index 7fc563b7..00000000
--- a/uml/sequence diagrams/work on artwork/work.txt	
+++ /dev/null
@@ -1,28 +0,0 @@
-@startuml
-actor User
-participant "Controller/Input Manager" as Input
-participant "HUD" as HUD
-participant "Canvas" as Canvas
-participant "Art Tools" as Tools
-participant "Security Manager" as Auth
-participant "Event Logger" as Logger
-User -> Input :  selects canvas
-Input -> Canvas : zooms in
-Logger -> Logger: Log: Canvas selected
-User -> Input : picks up tool
-Input -> Tools : applies tool
-Tools -> Canvas : updates canvas
-Logger -> Logger: Log: Canvas updated
-alt User clicks undo
-User -> Input: interacts with undo tool
-Input -> Tools: registers interaction
-Tools -> Canvas: undoes last stored change
-Logger -> Logger: Log: Change undone
-end
-Canvas -> Auth : requests authentication
-Auth -> Canvas: authenticates change
-User -> Input : clicks exit
-Logger -> Logger: Log: Canvas exited
-Input -> HUD : exits canvas
-Input -> Canvas : unzooms
-@enduml
\ No newline at end of file
diff --git a/uml/technical_architecture/uml.txt b/uml/technical_architecture/uml.puml
similarity index 100%
rename from uml/technical_architecture/uml.txt
rename to uml/technical_architecture/uml.puml