How do I enable indigo themes on openedx

I want to change the theme of openedx deployed on the local virtual machine. Because I use is tutor Installation, so I try to introduce indijo plug-ins, in accordance with the GitHub - overhangio/tutor-indigo: An elegant, customizable theme for Open edX Installation in the following steps to complete the Installation, But when I reopened openedx, I didn’t see the theme change

Check if the installation failed and I wonder if I need to modify some other configuration files