Daily background images on Schoology.
Daily Schoology Background Extension
This extension will change the background of the Schoology web page to be a different image every day. Updates at 16:00 CST.
Read more
Source Manifest.json
{"update_url": "https://clients2.google.com/service/update2/crx","name":"Daily Schoology Background","description":"Daily background images on Schoology.","version":"1","action": { "default_icon": "icon.png" },"manifest_version":3,"content_scripts": [ { "matches": ["https://*.schoology.com/*"], "js": ["script1.js"] } ]}
Read more