nix/home-manager/common/desktops/xfce/xfconf/xfce4-panel.xml

<?xml version="1.0" encoding="UTF-8"?>

<channel name="xfce4-panel" version="1.0">
  <property name="configver" type="int" value="2"/>
  <property name="panels" type="array">
    <value type="int" value="1"/>
    <property name="dark-mode" type="bool" value="false"/>
    <property name="panel-1" type="empty">
      <property name="position" type="string" value="p=6;x=1720;y=14"/>
      <property name="length" type="double" value="100"/>
      <property name="position-locked" type="bool" value="true"/>
      <property name="icon-size" type="uint" value="0"/>
      <property name="size" type="uint" value="26"/>
      <property name="plugin-ids" type="array">
        <value type="int" value="1"/>
        <value type="int" value="14"/>
        <value type="int" value="13"/>
        <value type="int" value="9"/>
        <value type="int" value="8"/>
        <value type="int" value="7"/>
        <value type="int" value="19"/>
        <value type="int" value="2"/>
        <value type="int" value="3"/>
        <value type="int" value="4"/>
        <value type="int" value="5"/>
        <value type="int" value="6"/>
        <value type="int" value="10"/>
        <value type="int" value="11"/>
        <value type="int" value="12"/>
      </property>
      <property name="enable-struts" type="bool" value="true"/>
      <property name="length-adjust" type="bool" value="true"/>
      <property name="mode" type="uint" value="0"/>
      <property name="background-style" type="uint" value="0"/>
      <property name="enter-opacity" type="uint" value="100"/>
      <property name="leave-opacity" type="uint" value="100"/>
    </property>
  </property>
  <property name="plugins" type="empty">
    <property name="plugin-1" type="string" value="applicationsmenu">
      <property name="button-icon" type="string" value="/etc/nixos/git/docs/icons/nixos/white.png"/>
      <property name="show-menu-icons" type="bool" value="true"/>
      <property name="show-button-title" type="bool" value="false"/>
      <property name="show-generic-names" type="bool" value="false"/>
    </property>
    <property name="plugin-2" type="string" value="tasklist">
      <property name="grouping" type="bool" value="false"/>
      <property name="show-handle" type="bool" value="false"/>
      <property name="show-tooltips" type="bool" value="true"/>
      <property name="show-labels" type="bool" value="true"/>
      <property name="show-wireframes" type="bool" value="true"/>
      <property name="sort-order" type="uint" value="0"/>
      <property name="flat-buttons" type="bool" value="false"/>
    </property>
    <property name="plugin-3" type="string" value="separator">
      <property name="expand" type="bool" value="true"/>
      <property name="style" type="uint" value="0"/>
    </property>
    <property name="plugin-5" type="string" value="separator">
      <property name="style" type="uint" value="0"/>
    </property>
    <property name="plugin-6" type="string" value="systray">
      <property name="square-icons" type="bool" value="true"/>
      <property name="known-items" type="array">
        <value type="string" value="steam"/>
        <value type="string" value="remmina-icon"/>
      </property>
      <property name="known-legacy-items" type="array">
        <value type="string" value="ethernet network connection “eth0” active"/>
      </property>
    </property>
    <property name="plugin-10" type="string" value="notification-plugin"/>
    <property name="plugin-11" type="string" value="separator">
      <property name="style" type="uint" value="0"/>
    </property>
    <property name="plugin-12" type="string" value="clock">
      <property name="timezone" type="string" value="Asia/Tokyo"/>
      <property name="mode" type="uint" value="2"/>
      <property name="digital-layout" type="uint" value="3"/>
      <property name="digital-time-font" type="string" value="System-ui 14"/>
    </property>
    <property name="plugin-19" type="string" value="separator">
      <property name="style" type="uint" value="1"/>
    </property>
    <property name="plugin-4" type="string" value="pager">
      <property name="rows" type="uint" value="1"/>
      <property name="miniature-view" type="bool" value="false"/>
      <property name="workspace-scrolling" type="bool" value="false"/>
      <property name="numbering" type="bool" value="false"/>
    </property>
    <property name="plugin-7" type="string" value="launcher">
      <property name="items" type="array">
        <value type="string" value="17150589684.desktop"/>
      </property>
    </property>
    <property name="plugin-8" type="string" value="launcher">
      <property name="items" type="array">
        <value type="string" value="17150589543.desktop"/>
      </property>
    </property>
    <property name="plugin-9" type="string" value="launcher">
      <property name="items" type="array">
        <value type="string" value="17150589422.desktop"/>
      </property>
    </property>
    <property name="plugin-13" type="string" value="launcher">
      <property name="items" type="array">
        <value type="string" value="17150589081.desktop"/>
      </property>
    </property>
    <property name="plugin-14" type="string" value="separator"/>
  </property>
</channel>