CMB2 option example

cmb2-option-example.php

<?php
/**
 * Plugin Name:  CMB2 option test
 * Author:       chrono-meter@gmx.net
 * Version:      20211223
 *
 * @link https://github.com/CMB2/CMB2-Snippet-Library/search?q=object_types&unscoped_q=object_types
 * @see add_menu_page()
 *
 * to get variables: cmb2_get_option('myprefix_network_options', 'key', 'default')
 */
add_action( 'cmb2_admin_init', function () {
	$cmb_options = new_cmb2_box( [
		'id'           => 'myprefix_network_option_metabox',
		'object_types' => [ 'options-page' ],

		// admin_menu|network_admin_menu
		'admin_menu_hook' => 'admin_menu',

		/** @link https://codex.wordpress.org/Adding_Administration_Menus#Using_add_submenu_page */
		'parent_slug'     => 'options-general.php',
		'title'           => esc_html__( 'My options', 'myprefix' ),
//		'menu_title'      => '',  // menu title (default: 'title' property's value)
		'capability'      => 'manage_options',
		'option_key'      => 'myprefix_network_options',  // 1st arg for cmb2_get_option
//		'icon_url'        => 'dashicons-palmtree',
//		'position'        => 1,

		/** @link https://github.com/CMB2/CMB2-Snippet-Library/blob/master/options-and-settings-pages/custom-display-callback.php */
		// 'display_cb'      => false, // Override the options-page form output (CMB2_Hookup::options_page_output()).
		// 'save_button'     => esc_html__( 'Save Theme Options', 'myprefix' ), // The text for the options-page save button. Defaults to 'Save'.
	] );
	$cmb_options->add_field( [
		'name'    => __( 'Test Text', 'myprefix' ),
		'desc'    => __( 'field description (optional)', 'myprefix' ),
		'id'      => 'test_text',
		'type'    => 'text',
		'default' => 'Default Text',
	] );
	$cmb_options->add_field( [
		'name'    => __( 'Test Color Picker', 'myprefix' ),
		'desc'    => __( 'field description (optional)', 'myprefix' ),
		'id'      => 'test_colorpicker',
		'type'    => 'colorpicker',
		'default' => '#bada55',
	] );
} );