Hyperpigmented navel. Any thoughts on how to treat this? (Photo)

Hi. I had a tummy tuck 5/2021. Initially my scars looked red/purplish however have darkened over time. I’m having a revision to my abdomen scar but it’s my navel I’m having the most issue with. It did keloid which after 3 roundso of Kenalog steroid injections flattened. Now it’s hyperpigmented. I’ve had 2 sessions of pixel8 with minimal improvement. I like the shape of my belly button but I can’t deal with how dark it’s become. Any thoughts?