Bug 205876 "Preview","Description" on Chart Sample View are not externalized.
"Preview" and "Description" label on Chart Sample View are not externalized so they are dislayed in English. Please check the attached screen shot for detail. I think its hard coded in ChartExamples.java.
chart/org.eclipse.birt.chart.examples/src/org/eclipse/birt/chart/examples/view/ChartExamples.java
*            sGroup
	 */
	private void createTree( Composite parent )
	{
		Tree tree = new Tree( parent, SWT.SINGLE | SWT.BORDER );
		tree.setLayoutData( new GridData( GridData.FILL_VERTICAL
				| GridData.FILL_HORIZONTAL ) );
		tree.addSelectionListener( this );
		fillTree( tree );
	}
	/**
	 * Fill in the tree items.
	 * 
	 * @param tree
	 *            The selection tree.
	 */
	private void fillTree( Tree tree )
	{
		ArrayList cTypes = icp.getCategoryTypes( );
		Iterator iter = cTypes.iterator( );
		tree.setRedraw( false );
		while ( iter.hasNext( ) )
		{
			TreeItem cItem = new TreeItem( tree, SWT.NONE ); 
			
			cItem.setText( (String) iter.next( ).toString( ) );
			ArrayList iTypes = icp.getItemTypes( cItem.getText( ) );
			Iterator iter2 = iTypes.iterator( );
			while ( iter2.hasNext( ) )
			{