For SHS vs Princess combs I cant say if it is for all of them, but most are darker/bolder colors with noticeably less glitter. I will try to take a photo to compare some I know are correct if I have time later.
The star panties, I think for the party pack the colors are darker, but I'm not sure?
Also remember that we keep finding variants to accessories or what was boxed in different releases or countries, so some things like those glitter star combs will always leave you a little unsure if you got the right one. The first set of princesses never feels "right" to me when I look at my displays and I think its just because there are so many varriants on the combs!