我正在使用这段代码，并试图在数组字段上显示颜色选择器。有什么想法，怎么做？

<?php

class Smashing_Fields_Plugin {

    public function __construct() {
        // Hook into the admin menu
        add_action( \'admin_menu\', array( $this, \'create_plugin_settings_page\' ) );

        // Add Settings and Fields
        add_action( \'admin_init\', array( $this, \'setup_sections\' ) );
        add_action( \'admin_init\', array( $this, \'setup_fields\' ) );
    }

    public function create_plugin_settings_page() {
        // Add the menu item and page
        $page_title = \'My Awesome Settings Page\';
        $menu_title = \'Awesome Plugin\';
        $capability = \'manage_options\';
        $slug = \'smashing_fields\';
        $callback = array( $this, \'plugin_settings_page_content\' );
        $icon = \'dashicons-admin-plugins\';
        $position = 100;

        add_menu_page( $page_title, $menu_title, $capability, $slug, $callback, $icon, $position );
    }

    public function plugin_settings_page_content() {?>
        <div class="wrap">
            <h2>My Awesome Settings Page</h2><?php
            if ( isset( $_GET[\'settings-updated\'] ) && $_GET[\'settings-updated\'] ){
                  $this->admin_notice();
            } ?>
            <form method="POST" action="options.php">
                <?php
                    settings_fields( \'smashing_fields\' );
                    do_settings_sections( \'smashing_fields\' );
                    submit_button();
                ?>
            </form>
        </div> <?php
    }

    public function admin_notice() { ?>
        <div class="notice notice-success is-dismissible">
            <p>Your settings have been updated!</p>
        </div><?php
    }

    public function setup_sections() {
        add_settings_section( \'our_first_section\', \'My First Section Title\', array( $this, \'section_callback\' ), \'smashing_fields\' );
        add_settings_section( \'our_second_section\', \'My Second Section Title\', array( $this, \'section_callback\' ), \'smashing_fields\' );
        add_settings_section( \'our_third_section\', \'My Third Section Title\', array( $this, \'section_callback\' ), \'smashing_fields\' );
    }

    public function section_callback( $arguments ) {
        switch( $arguments[\'id\'] ){
            case \'our_first_section\':
                echo \'This is the first description here!\';
                break;
            case \'our_second_section\':
                echo \'This one is number two\';
                break;
            case \'our_third_section\':
                echo \'Third time is the charm!\';
                break;
        }
    }

    public function setup_fields() {
        $fields = array(
            array(
                \'uid\' => \'awesome_text_field\',
                \'label\' => \'Sample Text Field\',
                \'section\' => \'our_first_section\',
                \'type\' => \'text\',
                \'placeholder\' => \'Some text\',
                \'helper\' => \'Does this help?\',
                \'supplimental\' => \'I am underneath!\',
            ),
            array(
                \'uid\' => \'awesome_password_field\',
                \'label\' => \'Sample Password Field\',
                \'section\' => \'our_first_section\',
                \'type\' => \'password\',
            ),
            array(
                \'uid\' => \'awesome_number_field\',
                \'label\' => \'Sample Number Field\',
                \'section\' => \'our_first_section\',
                \'type\' => \'number\',
            ),
            array(
                \'uid\' => \'awesome_textarea\',
                \'label\' => \'Sample Text Area\',
                \'section\' => \'our_first_section\',
                \'type\' => \'textarea\',
            ),
            array(
                \'uid\' => \'awesome_select\',
                \'label\' => \'Sample Select Dropdown\',
                \'section\' => \'our_first_section\',
                \'type\' => \'select\',
                \'options\' => array(
                    \'option1\' => \'Option 1\',
                    \'option2\' => \'Option 2\',
                    \'option3\' => \'Option 3\',
                    \'option4\' => \'Option 4\',
                    \'option5\' => \'Option 5\',
                ),
                \'default\' => array()
            ),
            array(
                \'uid\' => \'awesome_multiselect\',
                \'label\' => \'Sample Multi Select\',
                \'section\' => \'our_first_section\',
                \'type\' => \'multiselect\',
                \'options\' => array(
                    \'option1\' => \'Option 1\',
                    \'option2\' => \'Option 2\',
                    \'option3\' => \'Option 3\',
                    \'option4\' => \'Option 4\',
                    \'option5\' => \'Option 5\',
                ),
                \'default\' => array()
            ),
            array(
                \'uid\' => \'awesome_radio\',
                \'label\' => \'Sample Radio Buttons\',
                \'section\' => \'our_first_section\',
                \'type\' => \'radio\',
                \'options\' => array(
                    \'option1\' => \'Option 1\',
                    \'option2\' => \'Option 2\',
                    \'option3\' => \'Option 3\',
                    \'option4\' => \'Option 4\',
                    \'option5\' => \'Option 5\',
                ),
                \'default\' => array()
            ),
            array(
                \'uid\' => \'awesome_checkboxes\',
                \'label\' => \'Sample Checkboxes\',
                \'section\' => \'our_first_section\',
                \'type\' => \'checkbox\',
                \'options\' => array(
                    \'option1\' => \'Option 1\',
                    \'option2\' => \'Option 2\',
                    \'option3\' => \'Option 3\',
                    \'option4\' => \'Option 4\',
                    \'option5\' => \'Option 5\',
                ),
                \'default\' => array()
            )
        );
        foreach( $fields as $field ){

            add_settings_field( $field[\'uid\'], $field[\'label\'], array( $this, \'field_callback\' ), \'smashing_fields\', $field[\'section\'], $field );
            register_setting( \'smashing_fields\', $field[\'uid\'] );
        }
    }

    public function field_callback( $arguments ) {

        $value = get_option( $arguments[\'uid\'] );

        if( ! $value ) {
            $value = $arguments[\'default\'];
        }

        switch( $arguments[\'type\'] ){
            case \'text\':
            case \'password\':
            case \'number\':
                printf( \'<input name="%1$s" id="%1$s" type="%2$s" placeholder="%3$s" value="%4$s" />\', $arguments[\'uid\'], $arguments[\'type\'], $arguments[\'placeholder\'], $value );
                break;
            case \'textarea\':
                printf( \'<textarea name="%1$s" id="%1$s" placeholder="%2$s" rows="5" cols="50">%3$s</textarea>\', $arguments[\'uid\'], $arguments[\'placeholder\'], $value );
                break;
            case \'select\':
            case \'multiselect\':
                if( ! empty ( $arguments[\'options\'] ) && is_array( $arguments[\'options\'] ) ){
                    $attributes = \'\';
                    $options_markup = \'\';
                    foreach( $arguments[\'options\'] as $key => $label ){
                        $options_markup .= sprintf( \'<option value="%s" %s>%s</option>\', $key, selected( $value[ array_search( $key, $value, true ) ], $key, false ), $label );
                    }
                    if( $arguments[\'type\'] === \'multiselect\' ){
                        $attributes = \' multiple="multiple" \';
                    }
                    printf( \'<select name="%1$s[]" id="%1$s" %2$s>%3$s</select>\', $arguments[\'uid\'], $attributes, $options_markup );
                }
                break;
            case \'radio\':
            case \'checkbox\':
                if( ! empty ( $arguments[\'options\'] ) && is_array( $arguments[\'options\'] ) ){
                    $options_markup = \'\';
                    $iterator = 0;
                    foreach( $arguments[\'options\'] as $key => $label ){
                        $iterator++;
                        $options_markup .= sprintf( \'<label for="%1$s_%6$s"><input id="%1$s_%6$s" name="%1$s[]" type="%2$s" value="%3$s" %4$s /> %5$s</label><br/>\', $arguments[\'uid\'], $arguments[\'type\'], $key, checked( $value[ array_search( $key, $value, true ) ], $key, false ), $label, $iterator );
                    }
                    printf( \'<fieldset>%s</fieldset>\', $options_markup );
                }
                break;
        }

        if( $helper = $arguments[\'helper\'] ){
            printf( \'<span class="helper"> %s</span>\', $helper );
        }

        if( $supplimental = $arguments[\'supplimental\'] ){
            printf( \'<p class="description">%s</p>\', $supplimental );
        }

    }

}
new Smashing_Fields_Plugin();