If you use zsh, there is zsh syntax highlighting plugin. For bash, a cursory search gave me ble.sh which looks interesting. And as other threads have mentioned, fish shell has this built in, but beware fish shell syntax works drastically differently from other POSIX shells
Good devs are good regardless of context, they may have their personal preferences but in the end welcome bug reports and feature requests, especially the helpful ones because it helps the project. Bad devs are dicks regardless of context as well, all they care about is review rate and other numbers appear in the scoreboard