>>21564423why an orange?
it's meant to be a fruit with a light to signify christ's light to the world.
next level is that Protestant colour is orange if they need a colour. usually they don't but if they need to identify each other in a non-prod place, it is usually orange or red for historical reasons.
next level is an orange is tropical and grows around the world, so christ's message is for the whole world of any religion. it has to be spread.
final level is that it's the same colour as Hinduism, a tolerance of paganism or an intolerance of it depending on how you see it. same reason Halloween in America is orange.