change map's BACKGROUND color (not nodes)
Looking to change the color of the actual background of a map, not any of the styling related to nodes, lines, etc. Just the background.
Sorry if this has already been addressed but the link to the blog's CSS style guide in most developer responses is broken!
A temporary solution for this would be to
create a Stylish style and tweak the CSS code
though it might be inconvenient doing so if you want different maps having different background colors