cms/components/com_users/tmpl/login/default.xml

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
	<layout title="COM_USERS_LOGIN_VIEW_DEFAULT_TITLE" option="COM_USERS_LOGIN_VIEW_DEFAULT_OPTION">
		<help
			key = "Menu_Item:_Login_Form"
		/>
		<message>
			<![CDATA[COM_USERS_LOGIN_VIEW_DEFAULT_DESC]]>
		</message>
	</layout>

	<!-- Add fields to the parameters object for the layout. -->
	<fields name="params">

		<!-- Basic options. -->
		<fieldset name="basic" addruleprefix="Joomla\Component\Users\Site\Rule" label="COM_MENUS_BASIC_FIELDSET_LABEL">
			<fieldset name="login" label="COM_USERS_FIELD_OPTIONS_LOGIN">
				<field
					name="loginredirectchoice"
					type="radio"
					label="COM_USERS_FIELD_LOGIN_REDIRECT_CHOICE_LABEL"
					layout="joomla.form.field.radio.switcher"
					default="1"
					>
					<option value="0">COM_USERS_FIELD_LOGIN_URL</option>
					<option value="1">COM_USERS_FIELD_LOGIN_MENUITEM</option>
				</field>

				<field
					name="login_redirect_url"
					type="text"
					label="JFIELD_LOGIN_REDIRECT_URL_LABEL"
					description="JFIELD_LOGIN_REDIRECT_URL_DESC"
					validate="LoginUniqueField"
					field="login_redirect_menuitem"
					hint="COM_USERS_FIELD_LOGIN_REDIRECT_PLACEHOLDER"
					message="COM_USERS_FIELD_LOGIN_REDIRECT_ERROR"
					showon="loginredirectchoice:0"
				/>

				<field
					name="login_redirect_menuitem"
					type="modal_menu"
					label="COM_USERS_FIELD_LOGIN_REDIRECTMENU_LABEL"
					description="COM_USERS_FIELD_LOGIN_REDIRECTMENU_DESC"
					disable="separator,alias,heading,url"
					showon="loginredirectchoice:1"
					select="true"
					new="true"
					edit="true"
					clear="true"
					>
					<option value="">JOPTION_SELECT_MENU</option>
				</field>

				<field
					name="logindescription_show"
					type="list"
					label="JFIELD_BASIC_LOGIN_DESCRIPTION_SHOW_LABEL"
					default="1"
					class="form-select-color-state"
					validate="options"
					>
					<option value="0">JHIDE</option>
					<option value="1">JSHOW</option>
				</field>

				<field
					name="login_description"
					type="textarea"
					label="JFIELD_BASIC_LOGIN_DESCRIPTION_LABEL"
					rows="3"
					cols="40"
					filter="safehtml"
					showon="logindescription_show:1"
				/>

				<field
					name="login_image"
					type="media"
					schemes="http,https,ftp,ftps,data,file"
					validate="url"
					relative="true"
					label="JFIELD_LOGIN_IMAGE_LABEL"
				/>

				<field
					name="login_image_alt"
					type="text"
					label="COM_USERS_FIELD_IMAGE_ALT_LABEL"
				/>

				<field
					name="login_image_alt_empty"
					type="checkbox"
					label="COM_USERS_FIELD_IMAGE_ALT_EMPTY_LABEL"
					description="COM_USERS_FIELD_IMAGE_ALT_EMPTY_DESC"
				/>
			</fieldset>

			<fieldset name="logout" label="COM_USERS_FIELD_OPTIONS_LOGOUT">
				<field
					name="logoutredirectchoice"
					type="radio"
					label="COM_USERS_FIELD_LOGOUT_REDIRECT_CHOICE_LABEL"
					layout="joomla.form.field.radio.switcher"
					default="1"
					>
					<option value="0">COM_USERS_FIELD_LOGIN_URL</option>
					<option value="1">COM_USERS_FIELD_LOGIN_MENUITEM</option>
				</field>

				<field
					name="logout_redirect_url"
					type="text"
					label="JFIELD_LOGOUT_REDIRECT_URL_LABEL"
					field="logout_redirect_menuitem"
					validate="LogoutUniqueField"
					hint="COM_USERS_FIELD_LOGIN_REDIRECT_PLACEHOLDER"
					message="COM_USERS_FIELD_LOGOUT_REDIRECT_ERROR"
					showon="logoutredirectchoice:0"
				/>

				<field
					name="logout_redirect_menuitem"
					type="modal_menu"
					label="COM_USERS_FIELD_LOGOUT_REDIRECTMENU_LABEL"
					description="COM_USERS_FIELD_LOGOUT_REDIRECTMENU_DESC"
					disable="separator,alias,heading,url"
					showon="logoutredirectchoice:1"
					select="true"
					new="true"
					edit="true"
					clear="true"
					>
					<option value="">JOPTION_SELECT_MENU</option>
				</field>

				<field
					name="logoutdescription_show"
					type="list"
					label="JFIELD_BASIC_LOGOUT_DESCRIPTION_SHOW_LABEL"
					default="1"
					class="form-select-color-state"
					validate="options"
					>
					<option value="0">JHIDE</option>
					<option value="1">JSHOW</option>
				</field>

				<field
					name="logout_description"
					type="textarea"
					label="JFIELD_BASIC_LOGOUT_DESCRIPTION_LABEL"
					rows="3"
					cols="40"
					filter="safehtml"
					showon="logoutdescription_show:1"
				/>

				<field
					name="logout_image"
					type="media"
					schemes="http,https,ftp,ftps,data,file"
					validate="url"
					relative="true"
					label="JFIELD_LOGOUT_IMAGE_LABEL"
				/>

				<field
					name="logout_image_alt"
					type="text"
					label="COM_USERS_FIELD_IMAGE_ALT_LABEL"
				/>

				<field
					name="logout_image_alt_empty"
					type="checkbox"
					label="COM_USERS_FIELD_IMAGE_ALT_EMPTY_LABEL"
					description="COM_USERS_FIELD_IMAGE_ALT_EMPTY_DESC"
				/>
			</fieldset>
		</fieldset>
	</fields>
</metadata>