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p0 supports multiple color themes that affect the entire application — from the UI and terminal to code syntax highlighting. Choose a theme that matches your preferences and working environment.
p0 theme selector with preview

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Built-in themes

p0 includes several carefully designed themes:

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Purple themes

  • Purple Deep (default) — Rich purple backgrounds (#0d0619) with bright purple borders, designed for extended sessions
  • Purple Minimal — Black and gray (#0a0a0a) with subtle purple accents
  • Purple Light — Light mode (#ffffff) with purple accent colors

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Dark themes

  • Claude Dark — Warm dark tones with orange accent
  • Vesper Dark — Clean dark with orange accent
  • Vitesse Dark — Neutral dark
  • Min Dark — Minimal dark
  • Cursor Dark — Clean dark theme inspired by Cursor IDE
  • Cursor Midnight — Deep blue-black for late-night coding

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Light themes

  • Claude Light — Warm beige with orange accent
  • Vitesse Light — Clean light
  • Min Light — Minimal light
  • Cursor Light — Bright, clean for well-lit environments
Each theme is designed to provide excellent readability and reduce eye strain during long coding sessions.

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System preference

Set your theme mode to System to automatically switch between your chosen light and dark themes based on your operating system’s appearance setting. For example, you can configure:
  • Dark theme: Purple Deep
  • Light theme: GitHub Light
  • Mode: System
p0 will then automatically switch between these themes when you change your system appearance, ensuring optimal visibility in any lighting condition.

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VS Code theme compatibility

p0 uses the VS Code theme format internally. All 13 built-in themes map to VS Code theme color tokens, which means:
  • Full CSS variable support — every VS Code color key is mapped to a CSS custom property
  • Shiki syntax highlighting — code blocks use the selected theme for accurate, beautiful syntax coloring across all supported languages
  • Terminal integration — terminal ANSI colors are extracted from the theme, so your terminal matches the rest of the app

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What themes affect

Themes in p0 control the appearance of:
  • UI colors — Sidebar, settings panels, dialogs, buttons
  • Terminal colors — Background, foreground, and all 16 ANSI colors
  • Code syntax highlighting — Keywords, strings, comments, functions across all languages
  • Diff viewer — Added, removed, and modified line colors
  • Chat interface — Message bubbles, code blocks, inline code
This comprehensive theming ensures a consistent visual experience throughout the application.

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Changing your theme

To change your theme:
  1. Open Settings with Cmd+, (macOS) or Ctrl+, (Windows/Linux)
  2. Navigate to Appearance
  3. Select your preferred theme from the dropdown
  4. The change takes effect immediately
You can also access the theme picker through the command palette (Cmd+Shift+P or Ctrl+Shift+P) by typing “theme”.