{
  "Name": "RibbonExtensibilityPart",
  "Base": "CustomUIPart",
  "ContentType": "application/xml",
  "RelationshipType": "http://schemas.microsoft.com/office/2006/relationships/ui/extensibility",
  "Target": "customUI",
  "RootElement": "customUI",
  "Paths": {
    "General": "customUI"
  },
  "Children": [
    {
      "MaxOccursGreatThanOne": true,
      "ApiName": "ImageParts",
      "Name": "ImagePart"
    }
  ]
}