i'm going to keep a sharp eye on his spots. i think he might be developing them elsewhere along his spine but only time will tell.
i'm looking at what you're explaining and i totally see it now. when i first got him, those spots were just a different color yellow/orange. you're right that now they're starting to wash out or lighten up a bit. fascinating!!!
the reason i picked him was because his patterning was so crazy and his colors were poppin'. it's neat to start seeing them progress!!!