Weird brown color on inner parts of leaves near budsites on Banana Kush flowering

So I flipped this plant on June 6, it started flowering June 9th or 10th and this picture is a few days old. Lights are going off soon so I will get a picture tomorrow with my HD camera but this should show you basically what you need. You can see a few budsites, what's up with the brown on the leaves near the buds? It's on every single budsite on the plant... but the buds are definitely growing day by day. Is this just going to be the coloration of the leaves during flowering? Cool pheno?

Or mold? No way though?

My temps are 77-82F lights on 67-69 off humidity 40-52 throughout day.

Looks like color is being expressed and all is well , no worries .