Actually, the color changing is directly from the books; the first book featured a juvenile, kind of nice raptor who could change colors, but it wasn't until the second book that it got really cool (or ridiculous, depending on you tolerance level for these things) with the Carnotaurs who could basically go full Predator.
If anything, I was disappointed with how little the Indomitus rex used its camo.
Actually, the color changing is directly from the books; the first book featured a juvenile, kind of nice raptor who could change colors, but it wasn't until the second book that it got really cool (or ridiculous, depending on you tolerance level for these things) with the Carnotaurs who could basically go full Predator.
If anything, I was disappointed with how little the Indomitus rex used its camo.