functions.php

<?php

if ( ! function_exists( 'paparless_theme_support' ) ) :

	/**
	 * Sets up theme defaults and registers support for various WordPress features.
	 *
	 * @since My theme name 1.0
	 *
	 * @return void
	 */
	function paparless_theme_support() {

		// Add support for block styles.
		add_theme_support( 'wp-block-styles' );

		// Enqueue editor styles.
		add_editor_style( 'style.css' );

	}

endif;
add_action( 'after_setup_theme', 'paparless_theme_support' );


/*-----------------------------------------------------------
Enqueue Styles
------------------------------------------------------------*/

if ( ! function_exists( 'paperless_styles' ) ) :

  function paperless_styles() {
    // Register Stylesheet
    wp_enqueue_style('paperless-style', get_stylesheet_uri(), array(), wp_get_theme()->get('Version'));
    wp_enqueue_style('paperless-style-blocks', get_template_directory_uri() . '/assets/css/blocks.css');
  }

endif;

add_action( 'wp_enqueue_scripts', 'paperless_styles' );


/*-----------------------------------------------------------
Customising The Excerpt Lenght
------------------------------------------------------------*/
function custom_excerpt_lenght($length) {
	return 25;
}
add_filter('excerpt_length', 'custom_excerpt_lenght');