African Dwarf Frog Gender? Question

There is a white bump on the back of the front leg that is a subdermal fland which means he’s a male Congrats!

 

Agree it’s clearly a male.
What are the white/cream spots around throat? Also looks like there might be some on toes.

 

i was wondering about that when i got him?

 

My roommate has a dwarf frog but it's albino. How big do they have to be to tell? Any tips? Because that cream color is like the color of its whole body.