no longer respects system theme (macos ghostty)

[uloco]

Description

themes that have both light and dark variant always use light theme, regardless of system theme. this used to work but broke recently.

Plugins

No response

OpenCode version

1.3.13

Steps to reproduce

1. use macos dark theme
2. use ghostty dark theme
3. open opencode and set theme to opencode
4. theme stays light

Screenshot and/or share link

No response

Operating System

No response

Terminal

No response

[github-actions]

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

• Auto theme mode does not work in tmux popup #19254: Auto theme mode does not work in tmux popup — similar report of system/auto theme not being respected, though specific to tmux popups
• TUI: system theme not found on macOS #10661: TUI: system theme not found on macOS — related issue about system theme detection on macOS

If your issue is distinct from these (e.g. it previously worked and recently regressed specifically with Ghostty), please add that context to help distinguish it.

[uloco]

This is not related to tmux or the opencode system theme