Initial nightmode commit
Changed color codes & backgrounds; added nightmode sprite file
Cleaned up Less so nightmode selectors weren't in the wrong places
Further cleaned up less for minification
Color corrections for sidebar & tables
Edited gray for greater nightmode contrast
Added Readme + updated nightmode sprites
Most images updated & finished nightmode for common.less
Updated all images & relevant Less; internalized some RES nightmode styling
Added more RES nightmode overrides; deduped overlapping nightmode rules
Alpha version of nightmode complete, needs further work on color contrast
Improved contrast & added thumbs
Added event icons, team icons, and fixed header icons' background highlighting
Nightmode fixes (mostly) complete
Added GPL + OGN icons