Colors change without effect

Hi

I found more things not working:

1. I set “Heading color” in the preset settings to another color and save it. It has no effect on the heading color

2. I change Base color and save it. But change is lost and not saved

Furthermore it would be good to know where you apply base color and where opposite base color?

For example the brown background color of the menu, where can it be changed?

In the boxed version we have a background around the boxed area: Where is this background defined?

best regards