(PECL haru >= 0.0.1)
HaruAnnotation::setIcon — Set the icon style of the annotation
$icon
   )Defines the style of the annotation icon. This function may be used with text annotations only.
iconThe style of the icon. Can take only these values:
HaruAnnotation::ICON_COMMENT
        HaruAnnotation::ICON_KEY
        HaruAnnotation::ICON_NOTE 
        HaruAnnotation::ICON_HELP
        HaruAnnotation::ICON_NEW_PARAGRAPH 
        HaruAnnotation::ICON_PARAGRAPH 
        HaruAnnotation::ICON_INSERT
        
   Returns TRUE on success.
  
Throws a HaruException on error.