Automatically enqueue style.css when creating a blank theme

assets/boilerplate/functions.php

@@ -0,0 +1,55 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly.
+}
+
+if ( ! function_exists( 'theme_enqueue_style' ) ) {
+	/**
+	 * Enqueue the theme's main stylesheet on the frontend.
+	 *
+	 * This function checks if the `style.css` file exists in the theme directory
+	 * before attempting to enqueue it. It ensures that missing files do not
+	 * generate PHP warnings and also applies the theme version for cache busting.
+	 *
+	 * Usage: Hooked into 'wp_enqueue_scripts'.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @see https://developer.wordpress.org/reference/functions/wp_enqueue_style/
+	 * @see https://developer.wordpress.org/reference/functions/get_stylesheet_directory_uri/
+	 * @see https://developer.wordpress.org/reference/functions/wp_get_theme/
+	 *
+	 * @return void
+	 */
+	function theme_enqueue_style() {
+		wp_enqueue_style(
+			'theme-style',
+			get_template_directory_uri() . '/style.css',
+			array(),
+			wp_get_theme()->get( 'Version' )
+		);
+	}
+	add_action( 'wp_enqueue_scripts', 'theme_enqueue_style' );
+}
+
+if ( ! function_exists( 'theme_enqueue_editor_style' ) ) {
+	/**
+	 * Enqueue the theme's main stylesheet in the block editor.
+	 *
+	 * This function enqueues the `style.css` file in the block editor to ensure
+	 * that the editor styles match the frontend styles. It uses the
+	 * `add_editor_style` function which is specifically designed for this purpose.
+	 *
+	 * Usage: Hooked into 'after_setup_theme'.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @see https://developer.wordpress.org/reference/functions/add_editor_style/
+	 *
+	 * @return void
+	 */
+	function theme_enqueue_editor_style() {
+		add_editor_style( 'style.css' );
+	}
+	add_action( 'after_setup_theme', 'theme_enqueue_editor_style' );
+}

includes/create-theme/theme-create.php

@@ -124,6 +124,13 @@ public static function create_blank_theme( $theme, $screenshot ) {
 			}
 		}
 
+		// Ensure functions.php is present to enqueue style.css
+		$functions_src  = $source . DIRECTORY_SEPARATOR . 'functions.php';
+		$functions_dest = $blank_theme_path . DIRECTORY_SEPARATOR . 'functions.php';
+		if ( file_exists( $functions_src ) ) {
+			copy( $functions_src, $functions_dest );
+		}
+
 		// Overwrite default screenshot if one is provided.
 		if ( static::is_valid_screenshot( $screenshot ) ) {
 			file_put_contents(