I would paint it!
I have a 12' row boat that is bright aluminum in color, we have tried draping camo netting over it, which worked okay as long as we weren't hunting out of the boat, we would hide it on the shore and cover it with netting/grass.
We tried hunting out of the boat sitting on top of the netting but it was a pain, and not to mentioned the netting caught on everything, ended up dragging all kinds of branches and grass which in turn pulled the netting off the boat exposing the bright aluminum.
Last year I built a frame with a roof that covered 1/2 the boat and zip tied the netting to the frame, we had greenheads and sprigs landing in our dekes 30yds from the boat.