google.maps.MarkerLabel interface
These options specify the appearance of a marker label. A marker label is a string (often a single character) which will appear inside the marker. If you are using it with a custom marker, you can reposition it with the labelOrigin property in the Icon class.
Properties
Type: string optional
The color of the label text. Default color is black.
Type: string optional
The font family of the label text (equivalent to the CSS font-family property).
Type: string optional
The font size of the label text (equivalent to the CSS font-size property). Default size is 14px.
Type: string optional
The font weight of the label text (equivalent to the CSS font-weight property).
Type: string
The text to be displayed in the label.