@startuml
class PickIconWindow {
    + PickIconWindow(hierarchyIcon:HierarchyIcon)
    + PickIconWindow(target:SerializedProperty)
    + <<override>> OnGUI(rect:Rect) : void
    + {static} DrawRect(r:Rect, c:Color) : void
    + {static} DrawLineH(x:float, y:float, width:float, c:Color) : void
    + <<override>> GetWindowSize() : Vector2
    + <<override>> OnClose() : void
}
PopupWindowContent <|-- PickIconWindow
@enduml