Renaming theme name?

I copied the Bauhaus theme by using the “Copy” button from Themes and Extensions, which created a folder called bauhaus-copy-1 in my directory. All I want to do is rename the folder bauhaus-child, but renaming the folder in the directory makes the theme not function. Renaming the text in the readme.txt changes the name that’s displayed under Themes and Extensions, which is great, but I need a way to be able to change the folder in the directory to bauhaus-child.

I’ve tried even searching the database for bauhaus-copy-1 to see if it got set somewhere the in the database, but that search query returned 0 results.

Any way to do this?

https://ww.wp.xz.cn/plugins/wptouch/