Bug 312761 It makes no difference changing the series labels position in Radar chart.[13]
chart/org.eclipse.birt.chart.ui/src/org/eclipse/birt/chart/ui/util/ChartUIUtil.java
* @since 2.3
	 */
	public static int getImageButtonDefaultHeightByPlatform( )
	{
		if ( isWindows( ) )
		{
			return BUTTON_HEIGHT;
		}
		return 0;
	}
	private static boolean isWindows( )
	{
		String platform = SWT.getPlatform( );
		if ( "win32".equals( platform ) ) 
		{
			return true;
		}
		return false;
	}
	/**
	 * Checks if grouping is supported.
	 * 
	 * @param wizardContext
	 * @since 2.3
	 */
	public static boolean isGroupingSupported( ChartWizardContext wizardContext )
	{