I'm running Windows 10 with Designer 18.104.22.168. Within the document, but not the palettes or status/menu bars, there is a yellow color cast to the artboards (see attached); even deeper in the background. Even within the otherwise neutral grey Color palette, the little circle swatches have the same cast. I can't see anything in the Preferences I can change.
Is there a way to correct this? It makes judging colors properly impossible.
The only other thing I can think of is I'm running f.lux color temperature software, but nothing changes when I disable that (maybe I have to remove it entirely?).