How to add a new screen to the WP Admin (with menu option as well) for a child Theme

Hi

I am creating a child theme and for that I want to create a separate screen with its own link in WP admin menu--> to configure those options that have been added to the child theme.

How do I create such a screen, along with a link in WP Admin for that screen-> both the screen and the link should be active only when the child theme is active and they should be removed when the child theme is no longer in use.

Yours sincerely,
Arvind.