:-) The only thought I have it was to choose something with even contrast across all the source code, and something I can stare at for 14 hours a day without inducing headaches.
Attached is another screenshot of the Pascal Dark, but this time showing other code elements like IFDEF's, numbers, strings etc. The IFDEF's might be a bit on the bright side, but luckily my code normally contains very little IFDEF's. The screenshot was from MSEide. See "pascal_dark_2.png".
Under Lazarus IDE I also have the current editor line in a different color (the background color of the Solarized Dark theme), and inactive code (eg: none active IFDEF's) is a dimmed color of the original. Okay, a picture speaks a thousand works, see "pascal_dark_3.png".