I really need to stop falling in love with green hats. I've never even made a green hat. I've a blue hat and a red hat and another blue hat -- oh, I guess I made a green hat for my husband, but that was crochet and bulletproof so I think it's fair to refer to it as a helmet instead. I can look at a pattern and imagine a project in a color other than what's pictured, I swear.
But. Oh. Have you seen the Seedling hat pattern (Rav)? Yes, it's green. But that's because there's a plant on it. Hello, green yarn = no duh.
Worsted weight. Pattern costs five bucks, but that's cool. I have a skein of Green Mountain Spinnery Wonderfully Woolly in Fiddlehead. I dare you to tell me that's not meant to be.