AI-generated Key Takeaways
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GMSPinImageOptionsprovides customization options for the image of advanced markers on a map. - 
          
It allows developers to set a glyph (string or image) to replace the default marker icon.
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Developers can customize the marker's appearance with
backgroundColorandborderColorproperties. 
GMSPinImageOptions
@interface GMSPinImageOptions : NSObjectProvides pin image customization for an advanced marker.
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An object representing a String or Image to replace the glyph on the marker
Declaration
Swift
var glyph: GMSPinImageGlyph? { get set }Objective-C
@property (nonatomic, nullable) GMSPinImageGlyph *glyph; - 
                  
                  
The color used to fill the marker shape with.
Declaration
Swift
var backgroundColor: UIColor? { get set }Objective-C
@property (nonatomic, nullable) UIColor *backgroundColor; - 
                  
                  
The color used for the border of the marker shape.
Declaration
Swift
var borderColor: UIColor? { get set }Objective-C
@property (nonatomic, nullable) UIColor *borderColor;