This plugin needs an update by the developer asap:

The WP Child Theme Generator plugin for WordPress is vulnerable to arbitrary file uploads in all versions up to, and including, 1.0.8. This makes it possible for administrators to upload arbitrary files on the affected site’s server which may make remote code execution possible.

https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/wp-child-theme-generator/wp-child-theme-generator-108-authenticated-administrator-arbitrary-file-upload

Hello, you must add a watermark when cloning the theme, the watermark must say ‘child’, ‘cloned’, ‘version 2’, etc… And thus be able to differentiate, what happens that I waste time clicking on see what the theme child is. With a modified screenshot I could differentiate it faster.

This plugin was effective in creating a child theme for ThemeViewer Builder. However, if left activated, it prevents edit of pages with ThriveTheme Builder.

Can you please review and try to address the issue?

Not yet tried.

If I make a child theme can I keep all customisations to the parent?

When I did it manually this info was lost.