Green Stool

Hi there. I've been curing my candida for a year now, and I think I'm almost there symptom wise.
However, since about 8 months ago, I've been passing stools that are always dark green. I haven't had a brown bowel movement in that long! However, they are always very well formed, and my bowel-transit time is normal (I pass at least 1 stool a day, and my transit time is 3-4 days after doing enemas.
What is the reason for it?!