Bug 45144 [PropertiesView] Properties View label provider does not clear the image
Properties View does not clear the image when the LabelProvider.getImage() retrns null. Attached exmaple: I have added onto the org.eclipse.ui.examples.propertysheet example to provide a ColorLabelProvider that returns null image for black and an image for all other colors. Select "richard" and note there are no image displayed. Now select an color besides black, and the color image appears as expected. Now select the color black and notice that the color image is still there.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/properties/PropertySheetViewer.java
tableTreeEditor.minimumWidth = layout.minimumWidth;
		tableTreeEditor.setEditor(control, item, columnToEdit);
		
		setErrorMessage(cellEditor.getErrorMessage());
		
		cellEditor.setFocus();
			
		fireCellEditorActivated(cellEditor);
	}
	/**
	 * Adds a cell editor activation listener.
	 * Has no effect if an identical activation listener 
	 * is already registered.
	 *
	 * @param listener a cell editor activation listener
	 */
	
	void addActivationListener(ICellEditorActivationListener listener) {
		activationListeners.add(listener);
	}
	/**
	 * Add columns to the table tree and 
	 * set up the layout manager accordingly.
	 */
	private void addColumns() {
		Table table = tableTree.getTable();
		
		TableColumn[] columns = table.getColumns();
		for (int i = 0; i < columnLabels.length; i++) {
			String string = columnLabels[i];