Loading screen photos.

[LinkyDooD]

Hi. I was wondering how people add pictures of their map to the loading screen?
For example: http://prntscr.com/fa067r
I've wanted to know for a while but i've never really found a straight answer.

Thanks in advance.

 

[Dr. Orange]

https://developer.valvesoftware.com/wiki/TF2/Adding_Menu_Photos#Adding_Custom_Map_Images