The optical vertical alignment of text is not perfect with button and selectable label, especially with the Inter font we use at rerun. The text here should be ~1-2px lower compared to the background. Unfortunately, we dont have separate control on the top/bottom padding there.

I'm not sure if there is something in the font metadata that could be used to adjust alignment.

An escape hatch would be provided by making button_padding a Margin instead of a Vec2.