I think the grey is fine for the subheaders, but the header grey Megadardery's using in his draft (MarioWiki:Sandbox) would be good for the overall header. His formatting (left-side-subheaders) would also be way better than the current draft (hence I asked for them, not for the horizontal subheaders to simply be left-justified); left-side subheaders are also good for nesting more specific subheaders (which is what Mariotime11 wants to do with Content and Images, by the sounds of it).