[FEATURE]: Light/Dark mode auto-switching #9697

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1. samholmes

   added

   discussionUsed for feature requests, proposals, ideas, etc. Open discussionUsed for feature requests, proposals, ideas, etc. Open discussion

   on Jan 20, 2026
2. github-actions

   assigned

   rekram1-node

   on Jan 20, 2026
3. github-actions

   added

   opentuiThis relates to changes in v1.0, now that opencode uses opentuiThis relates to changes in v1.0, now that opencode uses opentui

   on Jan 20, 2026
4. github-actions commented on Jan 20, 2026

   

   github-actionsBot

   on Jan 20, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • Different theme for light and dark mode #3244: Different theme for light and dark mode - requests the ability to use different themes based on system settings, which is closely related to your auto-switching feature request.

   Feel free to ignore if none of these address your specific case.
5. jal-co commented on Jan 20, 2026

   

   jal-co

   on Jan 20, 2026

   Last edited by jal-co

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   Hey, I'm happy to take this, as it is something I'd like too.

   Proposed approach:

   1. Add an "auto" option to the TUI theme mode (alongside "dark" / "light")
   2. When set to "auto", detect OS appearance and listen for changes:

   • macOS: Use defaults read -g AppleInterfaceStyle or the dark-mode-listener npm package
   • Linux: Check $XDG_CURRENT_DESKTOP + gsettings or similar
   • Windows: Registry check for AppsUseLightTheme

   3. Store the user's preference (auto/dark/light) in KV storage
   4. Update theme reactively when OS appearance changes

   ---

   edit:
   maybe do something like this instead?

   Current: theme is a single string (e.g., "dracula"). Mode is detected once at startup from terminal background.

   Proposed config schema:

   // Simple (backwards compatible)
   { "theme": "dracula" }
   // Advanced (new)
   {
     "theme": {
       "light": "github",
       "dark": "dracula", 
       "mode": "auto"  // "auto" | "light" | "dark"
     }
   }

   When mode: "auto", detect OS appearance and switch between light/dark themes automatically.

   Questions:

   • Should "auto" be the default, or should users opt-in?
   • Should this be something added to the config options? alongside separate "dark" and "light" themes? This would also handle Different theme for light and dark mode #3244
   • Any concerns with adding a dependency like dark-mode-listener, or prefer a shell-based approach?

   👍React with 👍3Reacted by Trevor Hartman, Kostiantyn Kugot and Νίκο
6. ariane-emory commented on Jan 20, 2026

   

   ariane-emory

   on Jan 20, 2026

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   @justinlevinedotme I think it should be opt-in, off by default.

   Personally, I would suggest that instead of changing the shape/schema of the configuration file, the enabledness of the automatic switching mode (on or off/true or false) be toggled by a new menu item in the command_list menu and persisted to the kv.json file. There are numerous pre-existing toggleable items in the command_list menu whose implementations can serve as examples.
7. github-actions commented on Apr 9, 2026

   

   github-actionsBot

   on Apr 9, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.
8. github-actions

   closed this as completedon Apr 9, 2026
9. Saafo commented on Apr 18, 2026

   

   Saafo

   on Apr 18, 2026

   Last edited by Saafo

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   Are the related PRs still waiting for approval? While CC had already supported recently.