The issue isnt really the color, it’s that all images and video are degraded in quality. That means android users are excluded from iphone group chats. This is a bug deal in America where iphones are incredibly popular.
I think it’s fair to be excited that people are working on ways to bridge the divide. Especially when the technical aspects of the reverse engineering is pretty cool. Not to mention the proof of concept was originally made by a high school student!
Genuine question, why does it matter? Why shouldn’t a project choose a production ready method of creating cross platform compatible code to avoid duplication of efforts and cost?