The theme is using its "Private browser" theme for the regular window. Its not the bright colours but the darker one. Annoying as I can't quickly differentiate between the two windows. I have tried refreshing the browser already and no difference.

Installing this addon creates a copy called "Firefox Radiance" which looks the same with a slight difference in the tab colour.

The theme doesn't match the image when it's installed, a dark theme is displayed I'm disgusted I wanted it too much!

Can't uninstall it. No Remove option, only Manage. No way to remove.

Kann nicht entfernt werden - in "Verwalten" fehlt der Eintrag "Entfernen"

Cannot be removed - missing entry in "Manage"

I have the dark colour scheme enabled in Windows 10 and that changes the colours of this theme in a bad way.