Can't save UI Customizations or Presets in 2021.6

[Tweakhead]

Originally Posted by Jess Davy

snip . . . I also found out that it doesn't save Color Palette presets at all. It doesn't create a preset file and also doesn't save quick presets and it looks like they forgotten that they removed Resources section in System Usage window.

I wonder if they need more beta testers?

I installed, launched, and this is the first thing I found.
I carefully customized the colors to my dark preference, saved it, went to light mode, customized it, saved it.
Went to recall my dark setting . . . uh - nothing there. Wasted my time.

What a great feature.

Edit: Update . . .
Actually it does work. You just shouldn't use "Save Settings As" first time around.
You must use "Save Settings", then after that you can use "Save Settings As".

While editing a UI Theme parameter, Page Up/Down in the Edit Window does not work.