OptionalangleNumeric value that defines the number of degrees ranging from 0-360, that a marker symbol is rotated. The rotation is from East in a counter-clockwise direction where East is the 0° axis.
OptionalcontentString value indicating the content type for the image.
OptionalheightNumeric value used if needing to resize the symbol. If images are to be displayed in their original size, leave this blank.
OptionalimageString value indicating the base64 encoded data.
The type of symbol. See SymbolJsonType.
OptionalurlString value indicating the URL of the image. The URL should be relative if working with static layers. A full URL should be used for map service dynamic layers. A relative URL can be dereferenced by accessing the map layer image resource or the feature layer image resource.
OptionalwidthNumeric value used if needing to resize the symbol. If images are to be displayed in their original size, leave this blank.
OptionalxoffsetNumeric value indicating the offset on the x-axis in pixels.
OptionalyoffsetNumeric value indicating the offset on the y-axis in pixels.
Picture marker symbols can be used to symbolize point geometries.
See https://developers.arcgis.com/web-map-specification/objects/esriPMS_symbol/.