In order for the photons to be detectable by the human eye, they are amplified by laser beams (boxes with yellow triangle symbol). (sciencedaily.com)
As you trek through these camps on your way to your objective, whether it be a fight with a warlord or an oil pump just waiting to be blown up, the combat seems to turn into a rhythm game at specific points where you keep your eyes on the screen checking for any floating triangle symbols. (thekoalition.com)
Oils certified by the AOA carry a triangle symbol on the bottle's label. (smh.com.au)