Lol

I remember the days of judging gear based on the color and label on the vial.

One thing you'll realize as u go along is that neither of those things matter at all.

If they use grapeseed oil, it will be pale yellow to even green colored.

Sesame seed oil is usually a orange-yellow.

Cottonseed oil is clear, white.

Safflower seed oil is clear as well. Those are the main carrier oils sources use, they can also use Ethyl Oleate which is clear to light yellow.

Guaicol is also kind of yellowish aromatic oil which is biosynthesized by a variety of organisms. It smells strong.

Also, compounds (test, Deca, tren) can leave some color in the vial depending on the amount of heat used and the type of raws (steroid powders) used.

So color doesn't mean anything
There are too many variables bro. Best thing you can do is buy gear based on reviews and lab tests and then pin that shit lol