src/helpers/Element.php
public static function icon($glyph, $options = [])
    {
        Ui::addCssClasses($options, ['icon', $glyph]);
        return Ui::tag('i', '', $options);
    }
public static function icon($glyph, $options = [])
    {
        Ui::addCssClasses($options, ['icon', $glyph]);
        return Ui::tag('i', '', $options);
    }
Renders an [icon tag](http://semantic-ui.com/elements/icon.html)

@param string $glyph the name of the icon to render -ie "cloud"
@param array $options the tag options in terms of name-value pairs

@return string the generated icon tag