While i don't use this plugin myself (i mean, how hard is it to copy a few files yourself?), i had a customer that did.
While as working as advertised for my client, i noticed when backing up his WordPress install a hidden file named
.ht_orbisius_child_theme_creator.json in the generated child theme folder.
The file is empty (0 bytes) and is harmless. However, i don't like WordPress plug-ins to create hidden files, harmless or not.
The plug-in author states that i should not write in the WordPress.org forum for support. While this is not exactly support (more of a bug/FYI report), i don't really want to sign up ANOTHER forum for something that could be done here. But ok, i respect the fact that some developers want to have control over their own support forums for business reasons.
But i rather write this here (and send a mail to the dev).