I have the yellow chains on the saws I use, but then I am always wearing Personal Protective Equipment and I have watched many videos/read books on how not to have a saw kick back on you. And I always watch the tip of my bar.
But I do have one saw which has the green label bar and a green label chain which is for when I have a helper who is not well trained. But I still make them wear PPE and I watch them like a hawk!
PPE=Chaps, hardhat*, face shield**, ear muffs, chainsaw protective gloves, and work boots.
*I always wear the hardhat when working with the chainsaw, mainly because the muffs and face shield are attached. Anyway I was working in a lady's yard and she had a tree with a branch just low enough to hit me in the head as I walked by. I kept forgetting to duck, but my hardhat saved me each time I walked by!
**The face shield has saved me too. I have the shield down when moving branches around (branches just limbed off a tree). Every once and awhile one of those branches whips up and smacks me in the face. But my face shield comes to the rescue!