Sorry but it doesn’t work. It doesn’t matter where I define which colour, the menu remains blue in the popup and the background white. I have deleted all caches and even deactivated them.
Furthermore, the constant jumping back from the Elementor element edit to the element overview is annoying, you can’t work properly.
If I want to edit the menu, it only pops up by chance, then you can see the settings in real time. It only opens about 1 mm.