vfl or evap?

I took this test and I saw what could be a vfl right after taking (top pic, and my arrow is a little off 😂) , but it looked colorless so I just left it. went back an hour later to pee and saw that the line looked a little darker with a hint of color (bottom). I know the dangers of evap lines 😣 so what do y'all think? evap or vvvvvvvvvvvvvfl?