[Sorry for the double reply]
The "numbers" template style would be considerably more useful if the palette was itself numbered. At least, while using that style.

I've seen a lot of people struggling to find the template. I think that it deserves its own button.

The dark mode is amazing. Seriously, I want it for the next years. I don't think that it needs such a huge button though, when a simple half-black half-white sun icon would do the trick.

On desktop the palette has an awkward shape, as a narrow 32x1 strip that you need to roll back and forth if the window isn't maximised (fairly often, since people were doing other stuff while placing pixels). It would be great if it was a 4x8 somewhere at the right.

A lot of people (incl. myself) were struggling to tell a few colours apart. Mostly dark grey vs. black vs. navy blue and dark chocolate vs. maroon. So it might be sensible to tweak the palette itself for the next years. But overall their hue distribution was really good, in no moment I thought "damn, I need more colours".