dash-to-panel/ui/SettingsAbout.ui

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <requires lib="gtk" version="4.0"/>

  <object class="AdwPreferencesPage" id="about">
    <property name="title" translatable="yes">About</property>
    <property name="icon_name">help-about-symbolic</property>

      <!-- group info -->
      <child>
        <object class="AdwPreferencesGroup" id="about_group_info">
          <property name="title" translatable="yes">Info</property>

          <child>
            <object class="AdwActionRow">
              <property name="title" translatable="yes">Version</property>
              <child>
                <object class="GtkLabel" id="extension_version">
                  <property name="label">...</property>
                </object>
              </child>
            </object>
          </child>

          <child>
            <object class="AdwActionRow">
              <property name="title" translatable="yes">Source</property>
              <child>
                <object class="GtkLinkButton" id="homepage_link">
                  <property name="label" translatable="yes">GitHub</property>
                  <property name="receives_default">True</property>
                  <property name="halign">center</property>
                  <property name="uri">https://github.com/home-sweet-gnome/dash-to-panel</property>
                </object>
              </child>
            </object>
          </child>

        </object>
      </child>

      <!-- group export import -->
      <child>
        <object class="AdwPreferencesGroup" id="about_group_export_and_import">
          <property name="title" translatable="yes">Export and Import</property>

          <child>
            <object class="AdwActionRow">
              <property name="title" translatable="yes">Export and import settings</property>
              <property name="subtitle" translatable="yes">Use the buttons below to create a settings file from your current preferences that can be imported on a different machine.</property>
            </object>
          </child>

          <child>
            <object class="AdwPreferencesRow">
              <child>
                <object class="GtkBox">
                  <property name="margin_start">8</property>
                  <property name="margin_end">8</property>
                  <property name="margin_top">4</property>
                  <property name="margin_bottom">4</property>
                  <property name="spacing">8</property>
                  <property name="halign">end</property>
                  <child>
                    <object class="GtkButton" id="importexport_export_button">
                      <property name="label" translatable="yes">Export to file</property>
                      <property name="receives_default">True</property>
                    </object>
                  </child>
                  <child>
                    <object class="GtkButton" id="importexport_import_button">
                      <property name="label" translatable="yes">Import from file</property>
                      <property name="receives_default">True</property>
                    </object>
                  </child>
                </object>
              </child>
            </object>
          </child>

        </object>
      </child>

      <!-- group disclaimer -->
      <child>
        <object class="AdwPreferencesGroup" id="about_group_disclaimer">
          <child>
            <object class="GtkLabel" id="label1">
              <property name="label" translatable="yes">&lt;span size="small"&gt;This program comes with ABSOLUTELY NO WARRANTY.&#10;See the &lt;a href="https://www.gnu.org/licenses/old-licenses/gpl-2.0.html"&gt;GNU General Public License, version 2 or later&lt;/a&gt; for details.&lt;/span&gt;</property>
              <property name="use_markup">True</property>
              <property name="justify">center</property>
              <property name="wrap">True</property>
            </object>
          </child>
        </object>
      </child>

  </object>
</interface>