Multiple scaling issues

[rongcuid]

Pixelorama version:
Flatpak version 0.9.2

There are multiple issues related to scaling:

1. When UI is scaled, IBus candidate window is at the wrong location, as if it it scaled at 100%
   • That is, if scaling is 200% and text input is at point P, the candidate window appears halfway between P and top-left corner
2. When UI is scaled, color picker actually picks color from point of inverse scaling
   • If scaling is 200% and I move the cursor to P on-screen, the actual point where color is picked is at 2P, origin at top-left corner.

[tjohnman]

I'd like to add that, regarding the animation/preview viewport on the top right, the zoom slider gets messed up and unworkable when using UI scaling.

Using Version 0.10.1-stable on Windows 10. I'm using 125% scaling on Windows itself, but disabled scaling for Pixelorama in Compatibility settings for the program.