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They say consistency is one of the principles of good UI design. Creating a plugin for WordPress is no different, and it's a best practice to make your plugin match the WordPress user interface as closely as possible. This helps keep the interface consistent for end users and can make your plugin more professional by providing a solid user experience from the start.

One of the primary advantages to using the WordPress Settings API is that the UI design elements are handled for you. The headers, description text, form fields, buttons, and notices are all styled exactly as the rest of the WordPress Dashboard. It's also future‐proof, meaning if the WordPress admin design and styles are updated in a future version, your plugin will automatically use the updated styling.

WordPress features many different styles that you can easily use in your plugin. In this section, you'll learn how to use the styling available in WordPress for your plugins. To demonstrate, create a simple plugin with a settings page.

<?php add_action( 'admin_menu', 'pdev_styling_create_menu' ); function pdev_styling_create_menu() { //create custom top-level menu add_menu_page( 'Testing Plugin Styles', 'Plugin Styling', 'manage_options', __FILE__, 'pdev_styling_settings' ); }?>

Throughout this section, you'll modify the pdev_styling_settings() function.