I experimented with a monochromatic color scheme for my F# projects. Basically, I wanted the code to look like a page from a beautifully typeset math book. It got pretty close, but for want of italics, which VS does not support.
But, it would be nice if VS supported italics, various font weights, and small caps.
I'm playing around with rich IDE typography right now (but with color), it especially pops out at higher DPIs.
http://research.microsoft.com/en-us/projects/liveprogramming...
Another thing that I tried was to extract each font variant into a separate file, and then to force VS to use those explicitly for different code element types, but that didn't work.
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