Another update -- it's changing color enough to be more obvious I think:
I wonder if they would retain the purple color of the immature fruits if I try to can them or pickle them.
I suppose the vinegar could change their color and heat/cooking may turn them green....
If it can stay purple, I would definitely consider finally getting a pressure canner and preserving them in brine.... I might anyway because I want to try to brine preserve my peppadews. Wouldn't it look wild if these dray purple and were put in a jar with the lacquer red peppadews? Maybe some bright yellow Hot Lemon Drops too?