- Download .zip file and unzip the file where you want
or
- Clone from this repo:
git clone
Go to chrome://extensions/. At the top right, turn on Developer mode. Click Load unpacked. Find and select the app or extension folder.
You can find more in google documentation
- Open the web site you want
- Open Chrome DevTools
- Find element you want change background
- Copy class name of this element
- Open popup of this extension
- Enter class name to input
- You can choose color for background
- Press save button