Hello everyone 
I would like to change the highlighted block header to a flat color like black. I figured out how to change in ACP > Color palette > Change Color 1 and Color 2 to the same color.

But it does not work and I see a black and aqua gradient background:


Is there a way to only change the header blocks? Thanks in advance!

I would like to change the highlighted block header to a flat color like black. I figured out how to change in ACP > Color palette > Change Color 1 and Color 2 to the same color.

But it does not work and I see a black and aqua gradient background:


Is there a way to only change the header blocks? Thanks in advance!