Liver – faint dark spots?

It’s a bit hard to put on camera, but I noticed these dark spots speckled across the outside of the bison liver after I cooked it (steamed). I drew a couple arrows to a few of the more noticeable spots but there are probably 50 or so. Not sure if they were there raw. I’ve cooked bison liver a good amount of times and never noticed this, but also maybe have never looked this closely.

Thoughts? Ok to eat? Maybe not?

Thanks for any help!