A screenshot of the Windows 3.1 Program Manager being configured to use the built-in color scheme called "Hotdog Stand" It leaves buttons and scrollbars grey, but is primarily a bright red and yellow (like ketchup and mustard) theme including the backgrounds of windows and everything. It is an assault on the eyes and the concept of color itself.
https://redwombat.social/system/media_attachments/files/115/209/661/763/308/974/original/aaac3c67e4bf25fc.jpeg