Unable to highlighting submenu options in context menu

Hi, I Unable to highlighting submenu options in context menu when hover to a particular option in submenu. But in context menu it is highlighting with blue color. The same thing is not happening in submenu…

Below is my code snippet.

webix.ui({ 
view: "contextmenu", 
id: "dtContextMenu", 
css: "webix-contextmenu", 
template:"#value#", 
//select:true, 
//openAction:"click", 
master: $$("datatable") });

$$('dtContextMenu').attachEvent("onShow", function() { $$("dtContextMenu").parse(data);

});

Here,

var data=[
{id:"one",value:"two"}, 
{id:"two",value:"two","submenu":
 {data:[
{"value":two1}, {"value:two2"}
 ]}];

Please help me… Thanks in advance.

Native highlighting works
http://webix.com/snippet/d54e7806

Please beware that your custom css class ( “webix-contextmenu” ) will affect only top level menu