I have been reading a lot about Xbox game development. Back in 2010-12, XNA technology was available so that a game could use the gamer's avatar.
When developing a game today, how can I use a gamer's avatar in the game ? I am aware that gamertag etc.. are available through Xbox live and creators or ID@xbox programs. I am also aware that I can use Unity/C#/Nuget and VS2017 to create a Xbox One and/or windows 10 game.
I am yet to find developer information related to avatars: what are the characteristics of the avatar ? how can I create one myself (coding) ? how to fetch avatar ? how to render it ? how to interact with it ? if at all possible...
Thanks for any help.