The tray IPC socket was hardcoded to /run/theta/tray.sock and /tmp/theta-tray.sock,
which cannot be bound on Windows (they resolve to C:\run\... and C:\tmp\... and need
admin rights). The daemon now binds a Unix socket under the per-user temp dir on
Windows, and the tray companion dials the same path.
The tray also exited immediately on Windows because it checked DISPLAY/WAYLAND_DISPLAY,
which are never set there. That graphical-session guard is now Windows-only; the tray
always runs on Windows.
wmantly