Hi Marius! Thanks for your analysis, it’s much appreciated.
Only a few quick answers:
1. There is no need to add more dependencies in the menu code just for removing the Default option for the classic button.
2. Regarding your quick example, I totally agree that users have to find the right balance in their color palette.
In general, we have some plans for the buttons in the header but we need to investigate these further. At this phase, we have made all required fixes.