Sounds like Painter Behind a Curtain https://www.mangago.me/read-manga/a_proxy_painter/ but I'm not 100% sure about the broken ankle part
I thinking you were talking about this
https://www.mangago.me/read-manga/yahwacheop/
But it’s not in black and white but it sounds a lot like this one
Definitely painter behind the curtain
Thank you, it was this one!
You're welcome! (⌒▽⌒)
I’m looking for this story where it had this painter that was locked in a room and was forced to pain, had his ankle basically broken, then a fire got started and he was “saved” by this black haired dude and was basically coaxed into painting for the black haired dude. It had like… 70? Chapters I think, could be wrong. It was primarily in black and white