imageboard_colors
Pictures that use colors from 4chan and similar boards, usually in the background, so they'll blend in well when posted there. Often used to mimic a transparent background.
Common colors
Futaba yellow/beige: #ffffee #f0e0d6
Burichan blue/purple: #eef2ff #d6daf0
See also
* Simple background
* White background
* Blending
* Tag group:Backgrounds
Aliases: none