nodered_cfg/node_modules/node-red-dashboard/nodes/locales/en-US/ui_switch.html

<script type="text/html" data-help-name="ui_switch">
    <p>Adds a switch to the user interface.</p>
	<p>Each change in the state of the switch will generate
    a <code>msg.payload</code> with the specified <b>On</b> and <b>Off</b> values.</p>
    <p>The <b>On/Off Color</b> and <b>On/Off Icon</b> are optional fields. If they are all present, the default
    toggle switch will be replaced with the relevant icons and their respective colors.</p>
    <p>The <b>On/Off Icon</b> field can be either a <a href="https://klarsys.github.io/angular-material-icons/" target="_blank">Material Design icon</a>
    <i>(e.g. 'check', 'close')</i> or a <a href="https://fontawesome.com/v4.7.0/icons/" target="_blank">Font Awesome icon</a>
    <i>(e.g. 'fa-fire')</i>, or a <a href="https://github.com/Paul-Reed/weather-icons-lite/blob/master/css_mappings.md">Weather icon</a>.
    You can use the full set of google material icons if you add 'mi-' to the icon name. e.g. 'mi-videogame_asset'.</p>
    <p>In pass through mode the switch state can be updated by an incoming <code>msg.payload</code> with the specified values,
    that must also match the specified type (number, string, etc). When not in passthrough mode then the icon can either
    track the state of the output - or the input msg.payload, in order to provide a closed loop feedback.</p>
    <p>The label can also be set by a message property by setting
    the field to the name of the property, for example <code>{{msg.topic}}</code>.</p>
    <p>If a <b>Topic</b> is specified, it will be added to the output as <code>msg.topic</code>.</p>
    <p>Setting <code>msg.enabled</code> to <code>false</code> will disable the switch widget.</p>
    <p>If a <b>Class</b> is specified, it will be added to the parent card. This way you can style the card and the elements inside it with custom CSS. The Class can be set at runtime by setting a <code>msg.className</code> string property.</p>
</script>