[fixed] Strange black lines on background

[Asticles]

Yes, it is solved on windows!
On linux I have an nvidia card, so I can't test if it's ok with amd. I've seen that with nvidia on linux is ok. (It was also before).

One more thing. On linux, the -x, -y, and -z axis color from native theme has the same values than the background color (0.8 v), so they aren't visible. On windows the background is 0.67v.

Thanks!