I've never seen his urate come out like this. Recently he had some dubia, crickets and a few wax worms as a treat. His dubia, which fed to him like 4 days ago/one poop ago were dusted with a multivitam.
Not sure if the picture does it justice, but it looked pretty dark.
His temps are fine, and I'm using a MVB as his basking spot and CHE for the rest of the tank.
I don't think so. Sometimes it can just look a bit strange. Is your dragon acting normal? Is there any reason to believe that your dragon might not be feeling well?