I would really like to see this as well.
My understanding is that the results text area and input fields are rendered using code views as they can use tmTheme files to style them. I'm using that approach to tweak the input boxes and output fields in Soda Theme.
To colour specific parts of the results content would require some named, tmTheme style hooks for a theme to latch on to, so that the output could be styled the same way a syntax scheme is created. Perhaps they exist already?
So, a dummy / example theme could be something like:
Are there any tmTheme rules that apply to the results output?