There is an rtl version for the admin plugin?

There is an rtl version for the admin plugin?

Nope, not at this time. If you are feeling up to it, you could provide that RTL support and issue a pull request and we'll gladly merge it in.

@ruhkster I just did the "Pull Request"

And I closed it :) A Pull Request is intended for you to provide fixes/enhancements to the code base. So if you can add RTL support (yourself) you can submit it as a PR.