Optional[markerInternal unique marker ID. This ID is used to identify markers in the annotation when updating, etc.
OptionalnotesAdditional information about the marker.
OptionalopacityMarker's opacity.
OptionalstrokeMarker's stroke (outline) color.
OptionalstrokeMarker's stroke (outline) dash array.
OptionalstrokeMarker's stroke (outline) width.
Marker's type name.
x coordinate for the first end-point.
x coordinate for the second end-point.
y coordinate for the first end-point.
y coordinate for the second end-point.
Represents base state for line-style markers.