If you have been keeping up with recent research on feathered dinosaurs (or even if you haven’t, this was everywhere for a while) you will know that several teams have published papers describing the colours of the feathers of various dinosaurs. Those with good memories or a strong interest will probably know that Anchiornis was revealed to have been predominantly back (or at least, very dark) with splashes of orange (or reddy colours).
However, it would I think be premature to assume that this is necessarily the right, or perhaps better, only answer. What we really know is that one Anchiornis specimen was black and orange at the time it died (assuming there are no taphonomic or other issues). Even people exceptionally unfamiliar with the basics of ecology or ornithology should be able to recognise this potential problem. There are lots of reasons to think that not all Anchiornis were this colour, and not all of the time.
At the bare minimum we might expect differences within the species as there will always be some differences in colour and patterning. The morphology of the bones might be identical between different species that were otherwise distinguished by their feather patterns or behaviour (as with the pheasants example I gave recently) that and thus are effectively invisible in the fossil record. There could always be local differences across the range of the species (some might live in forests and others in open areas or have different predators etc.). Far more simply though, it would be a surprise if males and females were truly identical in plumage, if juveniles had the same patterns as adults or if there were no changes over the seasons with moults.
In short, the research is exciting and interesting and the wealth of new ‘accurate’ reconstructions of Anchiornis are great. But for this and other feathered dinosaurs, this really not rule out other variations and combinations of colours from being wrong or being suggested. I’d be most surprised if future work didn;t reveal other patterns and colours for other specimens of the same fossil taxon. Equally, I’d be wary of inferring too much from one specimen – the present pattern can;t be used to infer much about the beahviour of the animal when we don’t know if it was male or female, in breeding season or not, in a summer or winter coat or even midway between them.