Change a page background color..
change backgorund color on a whatever page.
Rancher.io background changer.
apply different colors to webpage background and find which looks perfect
URL CHANGER
Change the color scheme and codes! The best style change extension.
This extension changes github background color according to the organization/username pattern.
Trying to find an Everybody Edits level that you visited, only to see "Play Everybody Edits" a bazillion times in your history, and…
Salesforce Color Changer
Custom color themes for Youtube. Change youtube color to preset themes or create your own
Change the background color of the current page to green, red, yellow, or blue
Change your web app background using this extension. Either enter a URL or upload you custom picture.