I just installed Mailspring , but I want to use a Picture for my Background like I can in Wino Mail and Windows 10 Mail (RIP) , the Themes/backgrounds that come with this Free Version are generic and crappy looking , I want my own background , but it only allows me to Download a Theme (from where I have no clue) , why can’t I just use a picture from My Documents as a background ?? , it doesn’t even allow for a JPG. to be used as a Background , this is a dealbreaker for me , it honestly looks like no thought was given to looks , if this is the way it’s going to look , I will just uninstall it , as it’s too generic looking to even want to use the way it looks , it looks like something from Windows 3.1