We do it all the time for UX - make everything in new UI feature customizable through command line and have them tweak it until they are happy. There are always rendering differences between their mock tools and actual devices. For example, it's impractical to render UI in same layers as the tool does, and also real time graphics drivers can not use the same algorithms as desktop image editors.
So seems just common sense, although I am sure back in the day it was a lot more effort to add development UI and have it fit in memory?
So seems just common sense, although I am sure back in the day it was a lot more effort to add development UI and have it fit in memory?