How can I change the wallpaper on my chrome book to one of my own photos like I can only my phone?

[jimsposhbird]

How can I use one of my own photos as wallpaper on my chrome book like I can on my phone?

 

[penguintech]

http://www.tomsguide.com/faq/id-2388629/change-background-wallpaper-chromebook.html