OK, I haven’t posted here for a while. I came back and noticed Alley and Ooola’s skin now appears almost ghostly white. When Lemon and Sayers started their version of the strip their skin was much darker as can be seen on the screen in the upper left corner. Their skin seems to have become lighter with time. I went back and looked. The most recent transition seems to be from September 7th to 9th. Even Doc appears much lighter after this. Little Oop still has darker skin last Sunday.
I am not trying to insinuate that there is any significance or intent for this. It’s just an observation.