Blondii check out my blog and you'll find that I've nearly always had coloured ligs. To get their you can click on the address in my signature, plus here's my 2 1/2 year front profile collage.
If you eat and drink a lot of staining foods, I'd recommend you ask about wire ties, or dark coloured ligs. If you don't eat and drink much in the way of staining foods, then you'll probably be fine with lighter colours.
Another question for the ortho you choose is, can I have my ligs changed between appointments if they become stained? We offer this service to our patients. Not many bother, but a few adults who have a special function to go to, will get fresh ligs before they go, and high school kids often get new clear ligs before school photos and formals.
Keep researching!