post a screenie of what you mean...
if its for the picture creation then i think on the edit menu -> colors it has the colour types...
if you mean the actual programs colours then i think that is Veiw -> Preferrances
however i'm not entirely sure, would have to open up to find and be shown the problem
also depends what version, as with 7 i'm a little lost with where everything is - stupid if you ask me, they make a program hard enough to get to grips with then they move everything around... feels like the ASDA all the time to me
"the cereal is down isle 10 ... Ahh theres the sign for them."

"Ahhh man this is chrisps where the heck is the cereal" wandering around for about 2hours aimlessly trying to find the bloody cereal. Stop to ask someone they run through the directions like your in the centre of a city and too fast. Ya know what i mean, the kinda where your actually more confused about its location AFTER they tell you where it is, just drive off scratching ya head
Anata aru kowagaru no watashi! 