That's a positive to me xx
if the development time is longer than that in the instruction, that would be a unreliable positive (false positive). Do test again
I've had these before, and have also had the same thing with the pink dye tests. Sometimes the little groove where the ink would settle with a positive is visible once the test is used, but it's not actually positive. I had a major freak out for about 10 days last year because of these. On saying that, it's maybe a little darker than I'd expect because I feel like I can see some blue colour in the second line. Test again with a couple of different brands, hope you get the answer you're looking for xx
Looks like a evap line but some of my positives dried looked like this, would take another one tomorrow xx