I use KDE Plasma, and much prefer the KDE color picker over the GTK one that Firefox uses, with input type=color.
I know that I can set GTK_USE_PORTAL=1 to make Firefox use the native file picker, is there a way to make it use the native color picker as well?
I know there probably isn't a way, but I figured it's worth a shot asking.
IMHO a better design would be a mix between the two.
The left one has much better color palettes. Bigger, with a much nicer color selection than just "neon colors" on the right one. But without a color selector/slider it's unusable for advanced users. Should have an expandable panel with the hue sliders. And a color picker if I want to take it from somewhere else in the screen
I can't check at the moment but Firefox one has the custom field, so probably you need to add a custom colour to access those inputs