/**
     * Display a group of radio buttons
     *
     * @param 	array 	$setting 	See `do_settings_field()`. Has been filtered through `RO3::get_field_array()`
     * @return 	null
     * @since 	1.0.0
     */
    public static function radio_field($setting)
    {
        extract($setting);
        $choices = RO3::get_choice_array($setting);
        foreach ($choices as $choice) {
            $label = $choice['label'];
            $value = $choice['value'];
            ?>
<label class='radio' for="<?php 
            echo $choice['id'];
            ?>
">
				<input type="radio" id="<?php 
            echo $choice['id'];
            ?>
" 
				name="ro3_options[<?php 
            echo $name;
            ?>
]" 
				value="<?php 
            echo $value;
            ?>
"
				class="<?php 
            if (array_key_exists('class', $setting)) {
                echo $setting['class'];
            }
            ?>
"
				<?php 
            # add data attributes
            if (array_key_exists('data', $choice)) {
                foreach ($choice['data'] as $k => $v) {
                    echo " data-{$k}='{$v}'";
                }
            }
            # add checked property if we need to
            if (isset(self::$options[$name])) {
                checked($value, self::$options[$name]);
            }
            ?>
				autocomplete='off'
			/>&nbsp;<?php 
            echo $label;
            ?>
</label>&nbsp;&nbsp;
			<?php 
        }
    }