Changing fonts for multi measure rests and time signatures

Is it possible to add a feature that changes the fonts of time signatures and of multi-measure rests? I know that there is a plan to introduce big time signatures, and I think that I would take away from it, if we cannot make it look Hollywood style.
I also think that the same should apply to multi-measure rests, but only because I am not entirely with the way the number about the "H" bar looks. (No offense)