edit: they fixed the saved themes tab issue!
Decent extension with pretty thorough customization but the saved themes tab is covered by the menu preview and I can only access it with uBlock's element zapper. Additionally, the background images are never displayed as they're shown in the preview and the 1mb limit is a bit difficult to work with. A zoom-to-fit or resize option for backgrounds would be appreciated. Would be a 5 stars if not for those QOL issues.

Confusing just at a first glance, but I didn't read any instructions yet.
IMPORTANT and helpful. I have had an unfixable problem with the icons for my addons showing up. Somehow, this addon fixed it! So I'm thrilled that I added it. Even after disabling and restoring my original theme, the problem stayed fixed. It would be really helpful if a developer could check on what this addon changed to fix that problem. I will check my about:config setting it to show only changed values.
I will be using this addon as soon as I have time to read all of the documentation.

It's a pretty darn good tool for people like me who don't know how to create/edit style sheets. The big problem is something I have seen in past on other style tools on other platforms. It would be so much more helpful if you provided a simple numbered MARKUP diagram that shows exactly where within the browser tabs and toolbars each of the adjustable color elements exist. Only about 5 or 6 adjustment tools are super-obvious about where this color will get applied, such as "Active Tab" background color, or color of Icons. But far too many of the elements are very non-obvious to end users who didn't write the Firefox Color tool. YES it's great that some (but only very few) UI elements actually "light up" in the simplified preview element as you make a change. Either do it for all the elements or its huge disservice. ... I should really subtract a 2nd star for the non-obvious way to RE-APPLY your theme when buggy things happen that suddenly strip out the entire theme reverting to default. You show how to SAVE, how to favorite, how to share, but missing a simple actuator to "Re-apply theme".

It's always been a very good plugin, and now I'm concerned about its recent malfunctions. Every time I launch Firefox, I have to turn this plugin off and back on in order to actually make it work. Please fix?

The theme itself is very interesting, yet there seems to be some problem when using with nightly 133.0a1 Once the firefox is closed the next time it opens the colour theme only pop up for a second then disappear. This happened when using 'always inprivate' as well as normal tabs (I have select the add-on to working while inprivate mode) . I wounder if there is a bad setting or some problem when using with nightly.

Des années que je cherchais comment créer son propre thème Firefox personnalisé, et en fait ce module existait tout ce temps ? 😱 Trop bien en tout cas, on peut tout modifier, au-delà de mes espérances !

C'est juste dommage qu'on ne puisse pas choisir que l'image de fond se redimensionne automatiquement selon la largeur de la fenêtre, parce que du coup elle est presque systématiquement rognée (mais on peut choisir si elle est rognée à gauche, à droite ou sur les côtés 😄).

Server seems very slow on browser startup -- takes 3 or 4 seconds to 'load' the colour changes from server, then when finally done it resets the tab to blank even if I've already clicked a bookmark!

Started doing this a couple of months ago following a Firefox update.

There should be context menu (right click menu) color customization within the editor.

-[ my context menu looks out of place now :c ]-

It's amazing I love it but I have three suggestions and one thing that wasn't the best - it slowed down my Firefox a lot and had trouble working...
And my suggestion one is that we could add photos to the new tab page. Second suggestion, move the toolbar photo how we like and not only the three x and three y positions. And last please make this available to phone too uwu.
Other than the one thing that is a bit rough to work with, this is an amazing extension. Thank you! <3 :>

Would give it 5 stars if it was easier to work off existing themes and tweak them to your liking.

I wish it synced between different devices through my Mozilla account. I haven't found a way to access my saved themes other than pressing the "random" button & saving the result to get to the menu. (Though that may just be user error). Overall very nice, allows me to customize my browser in a way that I found usable & pleasing to look at.

Why doesn't it tune the color of the status panel?