Lack of window focus leads to inaccurate colors (specifically with icons)

[Gregor Grigorjan]

Here is what projectile-find-file using vertico as a back-end with all-the-icons looks like when mini-frame-mode is disabled:

This is with mini-frame-mode enabled:

This seems to be an issue of window focus, as swapping to and from the workspace Emacs is in (using awesomewm) leads to the colors being rendered correctly:

[Andrii Kolomoiets]

Just tried in emacs -Q NS port with mini-frame, vertico and all-the-icons-completion. Icon colors are the same after app switching. I can't see the icons changing colors when Emacs is not focused. Is this some all-the-icons feature that needs to be enabled to see the effect?