When trying to download any Plymouth Theme that’s hosted on Pling (.zip .tar, etc.) the page redirects to an error with same structure:
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<response>
<status>error</status>
<message>file not found (id: aDjXq0o95yQP2GE9qzaQFAAAE)</message>
</response>
the only ones you can get are .git ones, as they are stored on GitHub.