Bug 287103 [CommonNavigator] contentServiceLabelProvider doesn't properly implement overrides
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/extension/TestLabelProviderBlank.java
public void init(ICommonContentExtensionSite aSite) {
		super.init(aSite);
		_blank = true;
	}
	
	public static Color backgroundColor = Display.getCurrent().getSystemColor(
			SWT.COLOR_RED);
	
	public static Color getTestColor() {
		return backgroundColor;
	}
	public Color getBackground(Object element) {
		return backgroundColor;
	}
	public String getColorName() {
		return "Red";
	}
}