Have you tried looking in your "Setting - Appearance - Skin" if not there click on the Get More tab and see, if you have already used the "Skin" look in your Kodi/TVMC "Program" file and see if it's there.
Might help to have all your topics in one thread to fall back on for better learning/knowledge/feedback on getting to know how this Kodi program "coding" works.
I had to erase kodi and reinstall. So i dont have tvmc custom wizard anymore. I dont know if its still available is it? I downloaded the indigo fusion repo. Are they the same? The skin is in there. I never said anything about coding. I have using kodi and customizing it for 5 years.