[FEATURE]:Custom UI #57454

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1. opencode-agent commented on Oct 20, 2026

   

   opencode-agentBot

   on Oct 20, 2026 – with OpenCode Agent

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   Thanks for the suggestion, @XPDevs! As I understand it, you'd like a setting in the desktop/web app to load your own CSS file, so you can customise the whole interface beyond what the built-in themes allow. The maintainers will consider it.

   This isn't possible with a plugin right now: plugins can't change the desktop/web interface, and only the app's built-in extensions can add styles.

   Related issues:

   • Add user CSS override hook for desktop app theming (VS Code workbench.css equivalent) #40177: asked for the same thing (a desktop.css override loaded after the built-in themes). It was closed automatically for not following the issue template, not turned down.
   • app: custom themes from ~/.config/opencode/themes are not listed in the GUI theme picker #54235: custom theme files in ~/.config/opencode/themes don't show up in the desktop/web theme picker.
   • [FEATURE]: tui: theme token or plugin slot to style user prompts in the transcript #53547 and [FEATURE]: Desktop: allow tool-call rows to be visually de-emphasized in the transcript #57140: narrower requests to style specific parts of the conversation view.