Afraid this is "all of the above" and that this persian lime has greening.
West Coast of FL, from a cutting, in ground roughly 2 years. Have had it on imidicloprid treatment off and on to give it half a chance between aphids thrips psillids and leafminers but not diligently enough for it to be psillid free.
Worried about the seemingly color inversion on the fruit pictures and mottling of the leaves. Sometimes "old" citrus leaves look mottled especially if nutrient deficient which has prompted this post instead of an immediate axe and disposal. Thanks for the expert opinions ahead of time.
I have a naval orange and a Honey Murcott and various potted sour citrus that don't seem to have this same issue/coloration.