The source code

    // In AIR, XTemplates must be created at load time
    Templates = {
    	categoryCombo: new Ext.XTemplate(
    		'{listName}'
    	),
    	timeField: new Ext.XTemplate(
    		'{text}'
    	),

    	gridHeader : new Ext.Template(
            '',
            '{cells}',
            '',
                '',
                '',
                '',
                '',
            '',
            ""
        )
    };