I definitely like the blue. It has eradicated at a stroke the one problem I have always had with the grey theme: I could never see the cursor when typing so editing was hard work.
I don't know what it is looking like to others but the black theme is horrendous on my screen at work. It is so dark i can't see any border lines between frames and things so it all merges into one.
Still, I am not a mono freak like a certain person I could name that starts with d, endis in e and has av in the middle
I'll let him play with the dark version and stick to this lovely cool blue which is terrific to read.
The reason I am not going for red is that i think it will affect the way I see some coloured photos with red around them. Only personal taste of course so we will all settle on the ones we like. But people with taste will all use blue <gggg>
Cheers
Rob