the gui icons are all like that..
If I recall correctly, I think they used to be coloured. They might just be old screenshots you're comparing to.
also your general windows interface seems a very light grey.. i think it's adopting that colour from the system scheme which makes it seem more washed out.
aaand, this might not be possible in free version, but try (in the 'ribbon' bar) going into View > Style > pick a theme.
Save your work before you do that though -most of the few times i tried changing it, it crashed. although that might just be me cos I use a different windows shell