How to change menu display template in sidebar?

Question

WordPress

In one WordPress theme, widgets are displayed in the sidebar using the following code:
<?php dynamic_sidebar('sidebar'); ?>
Among the widgets, there is a custom menu widget. It is necessary that before these menus its name is displayed, which is given when creating a menu in the control panel. How to do it?
PS More precisely - how to change the output template of this title?

Answer 1

I will assume that you are here in the code
The widget area is registered in functions.php, there are also the corresponding settings for displaying widgets.