Can't change color palette?

I created a new color palette and changed one of the colors (secondary). It doesn’t show that it’s saved, but says “Undo” next to it. If I refresh the page, my palette resets to the default. This is true for all the palettes.

My theme is using the new color palette. If I switch between palettes, it shows them, but only whatever their defaults were. My preferences are set to “Theme default” and “same as regular” for dark.

What am I doing wrong? I can’t seem to change any colors at all.

Ah, it’s because if you paste in a hex color with the hex, it will just silently ignore you. So it’ll say “Undo” and grey out the Save button for the palette. You have to paste the hex without the hash.