Her liver was a bit more in the tan side, but not as dramatic as some of the photos I pulled up. No clots either, that I saw at the time of harvest.
My chickens get a mix of Purina Flock Raiser and "Healthy Hen" from a local mill in about 50:50, along with fermented scratch with is comprised of 3-way scratch, BOSS, and some whole corn. I need to go over my math on exact quantities, but I try to keep it at where they clean all their food before going up for the night with full crops. I got a bit lax with my "fermented" scratch and it's been more soaked grains (still a bit better I'd think) and I was probably giving them too much. Since culling her earlier last week I've cut back on the scratch grains.
I'll have to add photos of my setup sometime, but the chickens free range all day most days over about 1.5 acres and are usually fed late afternoon to early evening, so they get a fair amount of exercise and forage most their food throughout the day.
I'll watch for any signs of Mareks in the others, but so far everyone is pretty normal, aside from a hen with a limp. But I did nearly kill her when she ran under a board I slid off a dog crate, so I'm very certain that's an injury. I hope it's not Mareks as I've read that is absolutely dreadful to deal with and I just gave a cockerel to a relative.
ETA: her behavior reminded me a bit of videos I've seen in the past of chickens having seizures, so I thought perhaps that was what she was having. When she was "resting" in her pen before I culled her, she was almost in the "penguin" posture of being egg bound, but with her head all the way back and her toes curled up. I wonder if another option would a stroke (not from heat)? I know it's hard to tell without an actual veterinary diagnosis.
ETA 2: she had no eggs in the reproductive tract at the time of culling, so her issue was not egg binding.