If you don't want to manually change every UUID of the addons.css file, you should use this executable.
Make sure your addons are up to date, since addons.css file assume you have the lastest versions.
You can execute it from anywhere, which will download the lastest addons.css file from the repo and install it in your selected profile folder.
For Linux you have to execute it from the terminal.
If you place your addons.css file in the same directory as the executable, it will patch that one instead.