This app is not stand alone it need hex app to be able to use this plugin
Granola plugin is gradient or solid plugin color
For Gradient you have to choose noteui from hex preference:
-The gradient color will be based on
Qs icon background gradient color1
Qs icon background gradient color2
-Status bar & Navigation bar plus dashboard icons will be based on primary color need restart to apply if not applied choose light background to take effect
Please read more info on hex plugin