Question Can custom (user/player) images/files be used/imported?

As far as I can see, Unity really likes for everything to be imported and inside the project.

For one of my project, I want the player to be able to personalize unit portraits with his own pictures, but I'm not sure if that is even possible.

 

Two problems:

1. At runtime it is trivial to load a JPEG / PNG and make it usable inside of Unity3D.

2. Harder problem: extracting the images from the user's phone, or firing up the user's camera.

Fortunately there are tutorials for both available via Googling.