Year before last I was lucky enough to enter my friends greenhouse garden.
I've mentioned D's garden before. He gets the most amazing results with the most unothodox methods--like using oven cleaner for a bloom nutrient for instance.
There were about 20 healthy bushy plants, most 6' or taller, all close to harvest. Some of the taller ones were bent over in like an arch. Walking in there was like walking into a pot rainbow.
There were purple indica's, Mexican red hair, orange crush, pink champagne, even a few black Afgani's.
He added another color when he sun dried/cured some green to turn it gold, like they do in Columbia.
Appearance and color influence the ways things taste (to us humans).
P.S. The sun dried/cured weed ended up more yellow than gold. Maybe one needs to be closer to the equator than D is to get that vibrant beautiful gold color Columbian Gold is (was?).