I’m not sure as my girl is just starting to show what I think are gravid colors, as well. She’s a little s**t all the time so that doesn’t help figure it out
For my guys, spots usually mean aggitated/afraid. Clarice has recently been a darker shade of greenish grey with some brighter coloration, although not all the time. I’m not certain but do believe mine is gravid, but not positive. Hope the photos help... the first two are her in her current “predicament” and the last on is her coloration when frightened.