Is this mucuous stool?

Trying to figure out if my baby has dairy intolerance. I've cut out dairy for 2.5 weeks now but not seen any difference (I know it can take longer). Being strict as I'm a type 1 diabetic so already have to look at all labels anyway.

She has zero other symptoms. She's breastfed except one Kendmail comfort bottle as dreamfeed.

I thought I'd try cut it out as it didn't hurt but with zero other symptoms, the only thing I can think of is her stool? Thanks so much.