Window maximize button icons missing after update

asked 2018-01-26 00:00:01 +0800

sahild
117 ● 4

updated 2018-01-29 17:09:13 +0800

cor3000
6280 ● 2 ● 7

Recently we upgraded from 7.0.6 zk libraries to 8.0.5. Now all our maximize buttons are missing the icon(s).
The button still works fine, it just no longer has an icon for either maximize or restore. The minimize and close buttons are fine. We are using our own theme so could that cause the issue? Could we be missing one of the 8.0.5 jar files that has the image?
The following is the zul for the window. We try this on ZK Fiddle and it works fine there, it just doesn't work in our application. (I replaced : with | to not get the cannot post links message)

<window xmlns="http|//www.zkoss.org/2005/zul"  
    xmlns:xsi="http|//www.w3.org/2001/XMLSchema-instance"  
    xsi:schemaLocation="http|//www.zkoss.org/2005/zul  http|//www.zkoss.org/2005/zul/zul.xsd"  
    title="Edit Jobs"  
    border="normal" contentStyle="padding:0px"  
    sizable="true" closable="true"  
    maximizable="true" minimizable="true"  
    top="65px" left="35px"  
    width="1050px" height="600px">  

  <borderlayout width="100%">  
    <north border="none">  
      <menubar id="menubar">  
        <menu label="File">  
          <menupopup>  
            <menu label="Export History" >  
              <menupopup>  
                <menuitem label="By Filter" id="exportDisplayedMI"/>  
                <menuitem label="All" id="exportAllMI"/>  
              </menupopup>  
            </menu>  
            <menuitem label="Exit" id="exitMI"/>  
          </menupopup>  
        </menu>  
        <menu label="Actions">  
          <menupopup>  
            <menuitem label="Cancel Selected Jobs" id="cancelJobsMI" />  
          </menupopup>  
        </menu>  
      </menubar>  
    </north>  
    <center id="panel" border="none">  
      <tabbox vflex="true">  
        <tabs>  
          <tab label="Active" id="activeTAB"/>  
          <tab label="Completed" id="completedTAB" />  
        </tabs>  
        <tabpanels>  
          <tabpanel >  
            <vbox style="margin:1px" hflex="true" vflex="true">  
              <grid id="activeGrid" hflex="true" vflex="true">  
                <rows />  
                <columns sizable="true">  
                <column label="" width="30px">  
                  <checkbox id="cancelAllCB" />  
                </column>  
                <column label="" width="20px" />  
                <column label="ID" sort="auto(id)" />  
                <column label="Start Time" sort="auto(start)" />  
                <column label="Username" sort="auto(userName)" />  
                <column label="View" sort="auto(view.name)" />  
                <column label="Category" sort="auto(view.category.name)" />  
                <column label="Interval" sort="auto(intervalName)" />  
                </columns>  
              </grid>  
            </vbox>  
          </tabpanel>  
          <tabpanel >  
            <vbox style="margin:1px" hflex="true" vflex="true">  
            <hbox id="filterHB">  
              <label>Filter by Start Time: </label>  
              <listbox id="filterLB" width="200px" mold="select" />  
            </hbox>  
            <listbox id="completedLB" mold="paging" hflex="true" vflex="true">  
              <listhead>  
                <listheader label="" width="20px" />  
                <listheader label="ID" sort="auto(id)" />  
                <listheader label="Outcome" sort="auto(outcome)" />  
                <listheader label="Username" sort="auto(userName)" />  
                <listheader label="View" sort="auto(viewName)" />  
                <listheader label="Category" sort="auto(categoryName)" />  
                <listheader label="Interval" sort="auto(intervalName)" />  
                <listheader label="Start Time" sort="auto(start)" />  
                <listheader label="End Time" sort="auto(end)" />  
                <listheader label="Duration" sort="auto(duration)" />  
                <listheader label="CPU Time" sort="auto(cpuNanos)" />  
                <listheader label="Query Time" sort="auto(totalQueryTime)" />  
                <listheader label="DBNet Time" sort="auto  totalResultSetFetchTime)" />  
              </listhead>  
            </listbox>  
            </vbox>  
          </tabpanel>  
        </tabpanels>  
      </tabbox>  
    </center>  
  </borderlayout>  
  <menupopup id="completedPopup">  
    <menuitem label="Launch in New Window" forward="onLaunch" />  
  </menupopup>  
</window>