Good to hear. This makes sense to me. The combo of red and green definitely reminded me of the "Skittles" problem (as S Page coined it) we've encountered occasionally in using mediawiki.ui, where it might seem like the urge is to use constructive/progressive/destructive buttons side-by-side. 

The living style guide has been good in that it allows us to adapt this as we go. But at some point we're going to need more in the way of on-wiki docs I think, particularly when it comes to suggesting design principles, like don't put multiple progressive/constructive/destructive items in the same screen of a workflow. 
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