Here you will also need standard icons for another part of your project:
Working example
Js
$(function () { var icons = { header: "iconClosed",
CSS
.ui-icon.iconOpen { background:url('YOUR Image HERE') no-repeat; background-size:20px; width:20px; height:20px; } .ui-icon.iconClosed { background:url('YOUR Image HERE') no-repeat -5px; background-size:30px; width:20px; height:20px; }
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