The background wallpapers are shown at client startup and are handled by the client in a specific way.

The different usable wallpaper paths will be searched in that order:

1. From the wallpapersPath in the branding.xml file if there is one and if some fitting files are found there,
2. From the wallpapers options isn't set in the paths.xml file if there is one and if some fitting files are found there,
3. In the graphics/images/ otherwise.

The default wallpaper file will be searched in that order:

1. From the wallpaperFile in the branding.xml file if there is a fitting file found at the path+file location,
2. From the wallpaperFile options isn't set in the paths.xml file if there is a fitting file found at the path+file location,
3. As graphics/images/login_wallpaper.png otherwise.

In order to get a nice wallpaper whatever the resolution the users will use, the wallpapers' filename endings can use the given pattern:

myWallpaper_<Screen Width>x<Screen Height>.png

E.g.: A wallpaper to be used at the minimum 800×600 screen resolution will end with _800x600.png. This means that the given wallpaper file will be used at 800×600 and higher resolutions, but not when starting the client with a resolution of 640×480, for instance.

More than this, if more than one wallpaper file fitting a given minimum resolution is found. One of them will be loaded randomly when starting the client.

E.g.: With the given files:

myWallpaper1_800x600.png
myWallpaper2_800x600.png
myWallpaper1_1024x768.png
myWallpaper1_1440x900.png

• The client have only the default login_wallpaper.png file available for a resolution of 640×480,
• 2 files ending with _800x600.png for the resolution of 800×600,
• 3 files for the resolution of 1024×768, …