But I found, with a Dark theme I needed to: have the even numbered depths be the darker ones (avoids blank lines between functions be lighter), and expand the contrast between light and dark (subtracted 10 from each element of the darker levels, added 20 to each of the lighter).
But overall: makes the structure of my code far easier to see.
F# Depth Colorizer for Visual Studio 2013 has been already developed by Karlkim Suwanmongkol (based on Brian McNamara's code) and can be downloaded from:
Karlkim's SkyDrive: https://skydrive.live.com/?cid=6492340631f0e83e&id=6492340631F0E83E%2136931&authkey=!AEz10DZBR21Xo5o
or GitHub: https://github.com/kimsk/FSharpDepthColorizer
Hi Alex and Don,
A reader of my blog lets me know that 2013 version that I have doesn't support dark theme. The easiest way is to change colors in registry. You can download the dark-FSharpDepthColorizer.reg from the same place if you perfer working with the dark theme.
I put more detail on my blog here, http://cyanbyfuchsia.wordpress.com/2013/11/18/cool-visual-studio-extensions-for-f-developer/.
Hope this helps!