The default desktop background image for Mac OSX 10.9 (codename: Mavericks) is a giant wave image. Click here for a list of Mac OS X versions and codenames.
Mac OS X version and codename
Change desktop background image
Articles about wallpaper
Windows 11 – How to change the desktop background (wallpaper)Windows 10 – How to change the desktop wallpaper (background)iPhone/iPad – How to set/change the wallpaperAndroid – How to set (change) the wallpaper
