python3-sphinx-rtd-theme 0.4.3+dfsg-2 (arm64 binary) in ubuntu focal

 This mobile-friendly sphinx theme was initially created for readthedocs.org,
 but can be incorporated in any project.
 .
 Among other things, it features a left panel with a browseable table of
 contents, and a search bar.
 .
 This is the Python 3 version of the package.