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src/widget/downlist/item.downlistgroup.js

@@ -29,6 +29,8 @@ BI.DownListGroupItem = BI.inherit(BI.BasicButton, {
             cls: o.iconCls1,
             width: 36,
             height: o.height,
+            iconHeight: o.iconHeight,
+            iconWidth: 36,
             disableSelected: true,
             selected: this._digest(o.value)
         });