Today I’ve submitted my WikimediaUI-inspired main page of Russian Wikipedia for community discussion.
One of the feedback points I’ve got is that the page uses, as an editor called it, ‘mobile blue buttons that are foreign to desktop interface’. This editor uses Monobook skin, and he probably never seen WikimediaUI outside of mobile version exactly because of this. Right now, for some reason, Monobook uses non-standard Apex theme. This, I think, causes confusion for Monobook users when they see the interface that is pretty standard-looking for default Vector skin in their own one.
I suggest that Apex theme should not be used in any Wikimedia skins, so the users of any non-standard ones will be accustomed to a familiar interface no matter which skin they are on. It would benefit both the users and the developers to have the same standardised interface across all the skins in Wikimedia projects.