| RBAttributesPanel | 
 This is Ribs version of the AttributesPanel 
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| RBInspectorPanel | 
 This class manages the inspector panel. 
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| RBKeysPanel | 
 This class shows the current set of keys relative to the current editor selection in a browser and lets users
 drag and drop them to the editor. 
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| RibsGallery | 
 A gallery panel for ribs Swing components. 
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| RibsGeneral | 
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| RibsGeneral.CallbackFocusListener | 
 FocusListener implementation to add nice editing behavior to CallbackText. 
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| RibsPlacement | 
 This class provides Swing GUI editing for the currently selected shapes location and size. 
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