I was at your site about a week, I think. The blue text on black background is a bit hard on my rented eyes. However, maybe a little contrast is in order, like reds or oranges on the black background.
Back in the old days of computering (command-line processing, mono color terminals, memory measured in Kb, not Mb or Gb), I was using amber, green, and black & white monochrome terminals. The one that beat the rest hands down for readability and ease on eyes was the amber one.
Cheers!
Mark