I just setup powerline for the first time and there's this whitish transparent background overtop all of the arrows. Is there anyway to fix this?
Also, while we're at it, just a general question:
What does the 2.24 in the mode line mean?
is it possible you're running on a Mac? Then add this to your
(setq ns-use-srgb-colorspace nil)
See this Github issue for further context: https://github.com/milkypostman/powerline/issues/54
I don't know if this is applicable to this specific case, but for powerline/spaceline users, even though
(setq ns-use-srgb-colorspace nil) fixes the colors, it does this by applying the bad colors to all Emacs GUI, so you don't notice the effect anymore.
A better solution is to use
(setq powerline-image-apple-rgb t) so the image generation uses the sRGB colors.
What actually fixed it for me was using https://github.com/railwaycat/homebrew-emacsmacport, which works much better with OSX.