Meat color strange?

[Dbax129]

A buddy got his 2nd tag for deer area 6010 filled yeaterday. I was helping him cut today and we were both wondering why the mear on the top, back side of the legs was really light pink instead of red and a few of the pink sections were full of stringy white stuff. Like fat maybe.  Kindof weird. Has anyone else ever encountered this and is the meat safe or good?
Thanks!

[buck man]

its part of the top round if memory serves me right. Yes it is a lighter color muscle and perfectly normal.