Feature Request: Customizable chat text colors for user and assistant messages

Feature Request

Summary

Allow users to customize the text colors of chat messages in Claude Code — specifically the color of user input and assistant response text in the terminal interface.

Motivation

Claude Code supports extensive terminal theming via the statusline command and ANSI true-color. However, the chat message colors (user input and assistant responses) are hardcoded internally and cannot be customized through any configuration option, iTerm2 color profiles, or environment variables.

Users who have set up custom terminal themes (e.g. neon/cyberpunk themes with dark backgrounds) find that the default chat text colors clash with their terminal aesthetic.

Proposed Solution

Add configuration options in ~/.claude/settings.json to allow customization of:

• theme.userMessageColor — ANSI color code or hex for user input text
• theme.assistantMessageColor — ANSI color code or hex for assistant response text

Example Config

{
  "theme": {
    "userMessageColor": "#00e5ff",
    "assistantMessageColor": "#ffffff"
  }
}

Environment

• macOS, iTerm2
• Claude Code CLI
• Custom statusline + Starship cyberpunk theme