Question

Ok, so first thing in going to say is, I KNOW NOT TO READ A TEST AFTER THE TIME FRAME, nor am I getting my hopes up for a positive. I'm confident in saying that this is an evap line. My question is, who all uses the easy@home tests? Is it common to get a dark evap like this? I took it, it was negative, I forgot to toss it and got in the shower, this is what it looked like after my shower. I've taken several of these and haven't seen an evap like this. The picture with the red marks is within the time frame.