I only want to know RED or YELLOW light levels, and the SECONDARY is in the way, would be awesome to be able to toggle them on or off somehow. If there already is a way to do this, please don't hesitate to guide me in the right direction

Found it in the settings, "Secondary Light Level"(slider) set it to "off" , didn't notice it. Might be good to add it to the documentation since it says (1.18 only) to (1.18 only, other versions can turn it off in mod config via slider)