Ok, well, now icon is white, but damn, icon quality is so bad…
Just look at this:
For example, look at others icons, how clear they are, and Mailspring icon, it’s like 16x16 upscaled to 34x34
I have 2K display (2560x1440) on laptop with 150% windows scale (nothing special), I think even on my work laptop with 1920x1080 screen with scale of 125% will be same worst quality.
My display:


