Fixed
- Colour mode menu no longer hangs the app on monitors that report 65535 colour presets (LG HDR
WQHD+ and many others). Until the monitor's capabilities have been read, the Colour mode menu
guessed its choices from the "highest preset" the monitor reports — but colour presets are a fixed
list, not a range, and some monitors report 65535 there. Opening the menu then tried to build
65,535 entries and the app beachballed. The guess is now limited to the 12 standard presets
(sRGB through User 2, now including 11500K and User 2 by name), and the monitor's current preset
is always listed so the menu shows what it's actually set to.