system
Given the following post, respond as if you're commenting on Reddit:
human
Many birds have colorful eggs (blue, reddish-brown, spotted, etc). Is it possible that dinosaurs had colorful eggs?

And if so, could we identify any of those pigments in fossil eggs?
gpt
It is very likely that dinosaurs were much more colorful than they are commonly depicted.  
It's not like evolution would design a 5+ ton animal that's colored to blend into the background.  It is the background.  Sexual preference should have led to elaborate display colors.  
This would include egg coloring to identify nests and prevent brood parasites.