How can I change the highlight color?

My project is showing highlight texts in blue color. I would like to know how to go back to using the Light green color that I am used to. I couldn’t find the color option in the Settings. I don’t remember changing it manually either. Simply today my project is all in blue out of nowhere.

I also noticed that. Seems a system level change with no possibility to revert. But for me it looks better now.

All is highlighted according to project progress

blue – translated
green – approved
red – not translated