Note, his wasn't a picture it was a Photoshop image to show what he sees. I think in normal light the window is "whiter" than the defroster lines. and when you tint them it's reverse and the light shows the lines more.

 

Mine looks just like that.

 

In all the cars I've had tinted, the defrost lines are more prominent after tinting. That may be a little extreme, but they are definitely more noticeable after a tint job.

 

Mine was never like that and its not because I am used to it its because it was never like that.

 

yes i do a a g37s coupe and im loving it

 

and here is the link for pics of my car
https://www.myg37.com/forums/hawaii/...oil-overs.html

 

I have the same effect with my pinnacle f1 tint so i dont think you should worry too much