Fold markers are impossible to read

[eavdmeer]

Fold markers now use a dark grey text on a black background, making them impossible to read and even hard to spot.

• Open a JavaScript code file
• Run command :setlocal foldmethod=syntax
• Fold a section with zc

[eavdmeer]

Looks like these would be the colors to fix:

The colors of a closed fold are set with the Folded group |hl-Folded|.  The colors of the fold column are set with the FoldColumn group |hl-FoldColumn|.
Example to set the colors: >

	:highlight Folded guibg=grey guifg=blue
	:highlight FoldColumn guibg=darkgrey guifg=white