Seed question

Well i bought a seed of super lemon haze from green house seeds at attitude and i was just wondering over this seed that i received from them. Doesnt Green house seeds usually cover the seeds in those colorful spray so the seeds wont go bad or w/e. Well i received my seed and it does not have that color/sprayed stuff. Well does greenhouse seed bank sell all there seeds with that sprayed stuff or they also sell regular non sprayed seeds? I was just wondering because usually if you buy a souvenir pack from them they are always sprayed. So whata re your thoughts?

I got 5 SLH and 5 Barney's LSD from Attitude in Dec. Plus a few freebies. None were colored.

BTW, I germinated 2 SLH and 4 LSD, all successfully. All six plants are going gangbusters...really fast growers. But, they have lots of light, etc..near perfect conditions really.