The judges I know do not put anything on the test papers regarding appearance (clothes, etc)...if there is a problem, they make it their business to quietly and tactfully tell the coach.
I agree...there are some fashion blunders I wish would disappear. Bad grooming, dirty anything, underwear showing, holes in tights, clothes that do not fit properly and such lead that parade...
Also, the judges I know do not have a problem with black tights as long as the rest of the outfit is black...they do, however, prefer to see clean white skates with fresh laces instead of the over-the-boot tights.
Also please test-drive your outfits before any performance so that you can take care of anything that needs attention. The judges I know do not like to see skaters pulling at their clothes during a performance.
I could go on and on about what I have heard over the years...but this covers just about all of the blunders I have heard judges complain about.
Remember...if it can be seen by the video-camera, it can be seen by the judges!!