Editor Widget Role

i need to give to editor role the access on widget (or if possibile on a specific widget).

I use the code on this question and function but i have a problem. The editor can see the widget and also the "theme options" / "background" / "custom" of theme. I try to edit the code with this but nothing change:

// Editor accesso negato file template

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', 'themes.php' );
       remove_submenu_page( 'themes.php', 'nav-menus.php' ); 
       remove_submenu_page( 'themes.php', 'customize.php' );
       remove_submenu_page( 'themes.php', 'options-framework.php' );

    }       
}

add_action('admin_menu', 'custom_admin_menu');