patchtester/administrator/components/com_patchtester/config.xml

<?xml version="1.0" encoding="utf-8"?>
<config>
    <fieldset name="component"
              label="COM_PATCHTESTER_COMPONENT_LABEL"
              description="COM_PATCHTESTER_COMPONENT_DESC"
            >

        <field name="org" type="text"
               default="joomla"
               description="COM_PATCHTESTER_FIELD_ORG_DESC"
               label="COM_PATCHTESTER_FIELD_ORG_LABEL"
                />

        <field name="repo" type="text"
               default="joomla-cms"
               description="COM_PATCHTESTER_FIELD_REPO_DESC"
               label="COM_PATCHTESTER_FIELD_REPO_LABEL"
                />

    </fieldset>

    <fieldset name="permissions"
              description="JCONFIG_PERMISSIONS_DESC"
              label="JCONFIG_PERMISSIONS_LABEL"
            >

        <field name="rules" type="rules"
               component="com_patchtester"
               filter="rules"
               validate="rules"
               label="JCONFIG_PERMISSIONS_LABEL"
               section="component"/>
    </fieldset>
</config>