Buff Leghorn?

[JustBabyMargo]

Sorry, not slate, its white/pink. Could be, but the body conformation reminds me of a leghorn.

Oh yeah! Just a bit plumper.

 

[Quaen]

Oh yeah! Just a bit plumper.

Leghorns have yellow shanks, but they can decrease in tone in old birds, molting birds, or birds needing a rest, since its caused by carotenoids.

 

[The Moonshiner]

Yes buff leghorns should have yellow legs.
It's conformation does not remind me of a leghorn.