diff --git a/app/src/main/java/com/rekaapps/autodnd/data/repository/AppRepository.kt b/app/src/main/java/com/rekaapps/autodnd/data/repository/AppRepository.kt
index 649761f..169f994 100644
--- a/app/src/main/java/com/rekaapps/autodnd/data/repository/AppRepository.kt
+++ b/app/src/main/java/com/rekaapps/autodnd/data/repository/AppRepository.kt
@@ -24,6 +24,8 @@ class AppRepository
         private val dao: MonitoredAppDao,
         private val preferences: AppPreferences,
     ) {
+        private var cachedInstalledApps: List<Pair<String, String>>? = null
+
         /**
          * Returns all installed user apps merged with their monitored state from the database.
          */
@@ -85,18 +87,24 @@ class AppRepository
          * Returns a sorted list of installed user-facing applications.
          */
         private fun getInstalledUserApps(): List<Pair<String, String>> {
+            cachedInstalledApps?.let { return it }
+
             val pm = context.packageManager
-            return pm
-                .getInstalledApplications(PackageManager.GET_META_DATA)
-                .filter { app ->
-                    // Exclude system apps without a launcher intent
-                    val isSystem = app.flags and ApplicationInfo.FLAG_SYSTEM != 0
-                    val hasLauncher = pm.getLaunchIntentForPackage(app.packageName) != null
-                    !isSystem || hasLauncher
-                }.filter { app -> app.packageName != context.packageName }
-                .map { app ->
-                    val name = pm.getApplicationLabel(app).toString()
-                    app.packageName to name
-                }.sortedBy { (_, name) -> name.lowercase() }
+            val apps =
+                pm
+                    .getInstalledApplications(PackageManager.GET_META_DATA)
+                    .filter { app ->
+                        // Exclude system apps without a launcher intent
+                        val isSystem = app.flags and ApplicationInfo.FLAG_SYSTEM != 0
+                        val hasLauncher = pm.getLaunchIntentForPackage(app.packageName) != null
+                        !isSystem || hasLauncher
+                    }.filter { app -> app.packageName != context.packageName }
+                    .map { app ->
+                        val name = pm.getApplicationLabel(app).toString()
+                        app.packageName to name
+                    }.sortedBy { (_, name) -> name.lowercase() }
+
+            cachedInstalledApps = apps
+            return apps
         }
     }
diff --git a/app/src/main/java/com/rekaapps/autodnd/services/AppMonitorService.kt b/app/src/main/java/com/rekaapps/autodnd/services/AppMonitorService.kt
index ceb3441..3018351 100644
--- a/app/src/main/java/com/rekaapps/autodnd/services/AppMonitorService.kt
+++ b/app/src/main/java/com/rekaapps/autodnd/services/AppMonitorService.kt
@@ -5,6 +5,7 @@ import android.app.PendingIntent
 import android.app.Service
 import android.content.Context
 import android.content.Intent
+import android.content.pm.ServiceInfo
 import android.os.IBinder
 import android.util.Log
 import androidx.core.app.NotificationCompat
@@ -50,7 +51,11 @@ class AppMonitorService : Service() {
     }
 
     private fun startMonitoring() {
-        startForeground(NOTIFICATION_ID, buildNotification())
+        startForeground(
+            NOTIFICATION_ID,
+            buildNotification(),
+            ServiceInfo.FOREGROUND_SERVICE_TYPE_SPECIAL_USE,
+        )
         monitorJob?.cancel()
         monitorJob =
             serviceScope.launch {
diff --git a/app/src/main/java/com/rekaapps/autodnd/ui/about/AboutScreen.kt b/app/src/main/java/com/rekaapps/autodnd/ui/about/AboutScreen.kt
index 4e1b0ac..05b2495 100644
--- a/app/src/main/java/com/rekaapps/autodnd/ui/about/AboutScreen.kt
+++ b/app/src/main/java/com/rekaapps/autodnd/ui/about/AboutScreen.kt
@@ -63,7 +63,7 @@ fun AboutScreen() {
         ) {
             // App icon
             Image(
-                painter = painterResource(R.mipmap.ic_launcher),
+                painter = painterResource(R.drawable.app_logo),
                 contentDescription = "AutoDND icon",
                 modifier =
                     Modifier
diff --git a/app/src/main/res/drawable/app_logo.webp b/app/src/main/res/drawable/app_logo.webp
new file mode 100644
index 0000000..3baaf19
Binary files /dev/null and b/app/src/main/res/drawable/app_logo.webp differ
diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml
index 819b30a..264785c 100644
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -4,8 +4,7 @@
     android:height="108dp"
     android:viewportWidth="108"
     android:viewportHeight="108">
-  <rect
+  <path
       android:fillColor="#CCFF00"
-      android:width="108dp"
-      android:height="108dp"/>
+      android:pathData="M0,0 h108 v108 h-108 z"/>
 </vector>
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
new file mode 100644
index 0000000..3baaf19
Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp differ
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 584bb0d..11b7f92 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <style name="Theme.AutoDND" parent="android:Theme.Material.Light.NoActionBar" />
+    <style name="Theme.AutoDND" parent="Theme.AppCompat.DayNight.NoActionBar" />
 </resources>