Now I do not think it is hard to read at all. I Thing they have the proper colors to view correctly.

I think a better observations is TOO BUSY. Kinda reminds me of the WILD THEME Except this is perty. Wild is just plain ugly but in both cases just too much color to concentrate on what you are looking at. Especially when you are use to looking at lighter backgrounds. I just looked at the stylesheet and can tell ya alot of work went into this one.
People who are use to viewing text against darker backgrounds are probally drooling at this one.