I have suggestion for scaling hi-dpi for Speedbuttons with icons
Now: icons scale by any scale, e.g. by 175% if OS scale is 175%
It looks bad for 16x16 ide icons. they are looking broken.
- until scale <200%, don't zoom icons, paint 16x even on bigger buttons
- scale is >=200%, <300%, then zoom icons 2x times
- scale is >=300%, then zoom icons 3x times