refactor(theme): replace CoreFoundation FFI with OSC 11 for machine-agnostic dark/light detection (#347)
* refactor(theme): replace CoreFoundation FFI + Mode 2031 with OSC 11 for dark/light detection
Replace the 415-line Rust CoreFoundation FFI module and Mode 2031-only
detection with OSC 11 background color queries — the machine-agnostic
method used by Neovim, fish, bat, and terminal-colorsaurus.
Detection stack:
- OSC 11 query + DA1 sentinel at startup (works over SSH, mobile clients)
- Mode 2031 subscribe: re-queries OSC 11 with 100ms debounce (Neovim
convention) instead of trusting binary dark/light value directly
- 2s OSC 11 poll for terminals without Mode 2031 (Warp, Alacritty,
WezTerm, iTerm2); self-disables once Mode 2031 fires
- COLORFGBG env var fallback (free, no I/O)
- macOS defaults read fallback (Zellij edge case)
Deleted:
- crates/pi-natives/src/appearance.rs (414 lines of unsafe FFI)
- packages/natives/src/appearance/ (66 lines of TS bindings)
- macOS appearance observer and SIGWINCH coupling in theme.ts
Net: -424 lines. Rust crate lighter, detection works over SSH.
* fix(theme): ignore bogus zellij osc11 dark reading
* fix(theme): scope macOS fallback to broken terminal paths
* fix(tui): swallow DA1 sentinels for OSC 11 probes
---------
Co-authored-by: can1357 <me@can.ac>
lederniermagicien
486fd4c753