Feature Request: We should be able to open Decals in a separate window by double-clicking the Mask so we can edit Decals by pixel separately.
In fact, why not have a separate window to work on the decal and also manage things like its rotation instead of having it on the top bar - would be more ergonomic.
Second, the app needs better compatibility with Windows resolution scaling settings. I usually work at 300% 4K which made everything in UnionBytes Painter too big to fit on the screen, had to change the resolution scaling to 200% to use the application.
Some cloned decals appeared as black on the brush when pasted and only showed up on the model when pressed.