BETA / Work-in-progress: see XDA thread for the details - https://forum.xda-developers.com/galaxy-s10/themes/app-holey-light-t3917675
The current version is not a finished product. It can be a little rough around the edges. It's getting there though.
This app requires a LOT of permissions. If you are not comfortable with that, don't use it. The sources are available on GitHub for anyone security-conscious to scrutinize.
Note that if you leave a review on a BETA release, only the developer (ME) can read them. They are not public!