Steps In the course maker interface, go to themes menu and then select the “?” option;
 Save your course and create a folder;
 Move the course and all customizations files into that folder;
 Go back to the editor interface and load the same course file once again.
Enabling effect layersIf you want to use custom effects: click on the cat icon to enable them, but it will only work if there is at least one
uni_effect_X.pngfile in the course folder.
You can also use effect layers on any built-in theme.