Very minor thing thing but after resizing (increasing) the canvas I found on one occasion any open panels lost their drop shadows. Closing and restarting each panel returned things back to normal. I've tried a few times but can't repeat the phenomenon.

Click image for larger version. 

Name:	Screenshot 2021-08-18 at 09.30.02.jpg 
Views:	99 
Size:	53.4 KB 
ID:	101891

Something that is repeatable is, the Hide ArtRage button doesn't work when clicked when at full screen.

Name:  Screenshot 2021-08-18 at 09.43.00.png
Views: 147
Size:  28.3 KB