When you want to undo these "colorways", they're still called "themes" in settings :) Which have been around for a decade. My personal research into themes is

When you want to undo these "colorways", they're still called "themes" in settings :) Which have been around for a decade. My personal research into themes is that they suck altogether. Besides very neutral dark or light tones, almost every other combination conflicts with real world content. I've tried hundreds over the years and always fall back to defaults. Note how both web pages and apps also tend to have neutral tones. Must be a reason for it. Whilst this feature does no harm in itself, I can only agree with some other commenters that Mozilla has turned into a series of contradictions. It preaches a progressive agenda yet has a neoliberal economic policy. It excessively rewards leaders despite mismanagement and then fires workers. It preaches privacy unless it concerns their sponsor, Google. There is a Facebook container built-in, but none for the unavoidable Google. And now they want to get out of the "browser language" and speak the language of common folk. Yet they never seem to have met one. I suppose my old working class father would be a good test: "Dad, this browser allows you to bring your authentic self!" My what? And what is a browser? "They are gray boxes. But not to worry, these authentic colors that somebody else picked are a universal language that transcends the boundaries of our diverse verbal languages" Go on and you're out of the will.