Green poop?

My little man is 5 weeks and only breastfed and for the last couple days he has had bits of green in his poop. It’s never completely green but enough for me to see it, it almost looks like little bits of avocado mushed up.

He’s eating and sleeping normally and doesn’t seem sick. He’s always been colicky and gassy no matter what I do and I haven’t noticed it worse than his usual. I’m. First time mom so I don’t want to keep calling and freaking out with every little thing since I know sometimes the green can be from a hind/formilk imbalance. What do you guys think?