# backgroundImageChanged
Description: the notification received when the background is changed.
Example:
{
"method": "event",
"event": "backgroundImageChanged",
"isCustomImage": true,
"fileId": 84427739
}
Parameter description:
isCustomImage
— the flag indicating if the custom background is usedfileId
- the identifier of the file on the built-in HTTP server that is used as a background. This field is present only when a custom background is set.
See also: