0edd60b4c7
Padding buttons are supposed to be invisible but were drawn like regular menu items. For the most part it doesn't make a difference, since most themes use transparent menu items anyway. But e.g. the "White" theme is using opaque menu items, which would causes the padding button to overlap at the corner when the roundness of the menu background is very high. Pull Request: https://projects.blender.org/blender/blender/pulls/112731