Device wallpaper image

Configure device-level wallpaper image that is shown on the login screen if no user has yet signed in to the device. The policy is set by specifying the URL from which the Chrome OS device can download the wallpaper image and a cryptographic hash used to verify the integrity of the download. The image must be in JPEG format, its file size must not exceed 16MB. The URL must be accessible without any authentication. The wallpaper image is downloaded and cached. It will be re-downloaded whenever the URL or the hash changes.

If the device wallpaper policy is set, the Chrome OS device will download and use the wallpaper image on the login screen if no user has yet signed in to the device. Once the user logs in, the user's wallpaper policy kicks in.

If the device wallpaper policy is left not set, it's the user's wallpaper policy to decide what to show if the user's wallpaper policy is set.
See https://cloud.google.com/docs/chrome-enterprise/policies/?policy=DeviceWallpaperImage for more information about schema and formatting.

Example value:

{
"url": "https://example.com/device_wallpaper.jpg",
"hash": "1337c0ded00d84b1dbadf00dd15ea5eb000deaddeaddeaddeaddeaddeaddead0"
}

Device wallpaper image (The single-line field is deprecated and will be removed in the future. Please start using the multi-line textbox below.)

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Google\ChromeOS
Value Name	DeviceWallpaperImage
Value Type	REG_SZ
Default Value

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Google\ChromeOS
Value Name	DeviceWallpaperImage
Value Type	REG_MULTI_SZ
Default Value