Add Theme Color Options

[staging-tembo]

Summary

Implemented theme color customization for the chat interface with multiple color options:

• Added new CSS variables for theme colors (blue, green, purple, orange, rose)
• Created ThemeColorContext for managing theme color state
• Added ThemeColorSelector component in user navigation dropdown
• Implemented persistent theme color selection via localStorage

Changes

• Updated app/globals.css with theme color variants
• Created context/theme-color.tsx for theme color management
• Added components/theme-color-selector.tsx for theme color selection
• Modified app/layout.tsx to wrap app with ThemeColorProvider
• Integrated theme color selector in components/nav-user.tsx

Features

• Users can now select from 6 theme colors: Default, Blue, Green, Purple, Orange, Rose
• Theme color persists across page reloads
• Supports both light and dark mode color variants

Want tembo to make any changes? Add a review or comment with @tembo and i'll get back to work!

[staging-tembo]

Requesting review from @cooper-gadd who has experience with the following files modified in this PR:

• app/layout.tsx
• app/globals.css
• components/nav-user.tsx

[vercel]

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Project	Deployment	Review	Updated (UTC)
chat	Error		Jan 19, 2026 5:58pm