Open up about:config and go to layout.css.prefers-color-scheme.content-override and set it to one of the following:
0 => Force a Dark background
1 => Force a Light background
2 => Follow the System theme (default in Firefox 94)
3 => Follow the Browser toolbar theme (default in Firefox 95+)
I think you mean either longest wavelength or lowest frequency… or maybe lower energy?
it’s the slowest, that’s why it means Stop
are you still slow when you’re at a stop?
longest wavelength, yes, and lowest frequency, yes
thanks for the precision