its super unnecessarily complicated to get themes you make to show up in the regular theme manager, but its a pretty good tool otherwise

No option for old Firefox colors. Photon isn't it. I HAD designed my own and saved it - TWICE and Firefox took it down and reverted to gray again. IF IT AIN'T BROKE DON'T FIX IT. You could distinguish firefox from other browsers before, but not now. And the old designe isn't there. Again, Photon isn't it.

can't save custom backgrounds and have them synced across multiple devices. so dumb

there is an error when i try to load a theme i have made other than that it is great!

Where do I find saved color sets? I see saved sets after only aafter I make changes & click save icon. But, if I come back later, I can find neither a tab/button, nor any info on how to save/retrieve them, except for exporting.