This is intentional based on the new colour coded tiers I'll be working on, as per this https://forums.factorio.com/viewtopic.php?f=51&t=58751 There is an option in mod settings to turn that change off. Thank you for the quick response, we did not see that post, it all makes complete sense and ...

It seems on our server that "Bob's Tech" version 0.16.4 has changed the science colours.

Red is now Yellow
Green is now Red

I don't know if it is just our server, but thought I would ask.
Thanks btw for the great mods.