Update!! Faint pink/purple evap FRER?

I’ve never heard of FRER giving evap lines which is why I use them. Not only have I never heard of them leaving a evap line, but be never heard of them leaving a pink/purple evap line. I’m so confused, has anyone had his happen?

UPDATE!!!

I took another 2 today as AF is due tomorrow. One was a first response and the other was a exchange brand and I swear I see a semiconductor line on the exchange brand one however I’m not sure about the first response.