Editor user role for functions.php

editor-custom-role.php

/**
 * control editor role
 */

$role = get_role('editor'); 
   $role->add_cap('edit_theme_options');
   
   function custom_admin_menu() {

    $user = new WP_User(get_current_user_id());     
    if (!empty( $user->roles) && is_array($user->roles)) {
        foreach ($user->roles as $role)
            $role = $role;
    }

    if($role == "editor") { 
       remove_submenu_page( 'themes.php', 'customize.php');
       remove_menu_page( 'edit-comments.php' );
       remove_submenu_page( 'themes.php', 'themes.php'  );
       remove_submenu_page( 'themes.php', 'widgets.php'  );
       remove_menu_page( 'customize.php'  );
       remove_menu_page( 'options-general.php'  );
       remove_submenu_page( 'home-page-header'  );
       remove_menu_page( 'admin.php?page=current-theme' );

    }       
}

add_action('admin_menu', 'custom_admin_menu');