[Multisite Themes Manager] Multisite Themes Manager

I’m actually just curious if you used to have a multisite themes manager. I noticed that an old plugin (from iGate?) stopped working, so I was searching for alternatives when I saw this posting: https://premium.wpmudev.org/forums/topic/multisite-theme-manager-breaks-the-customizer/

I’d love to find an update or newer version (or just more info in general)…