Install this version:
emerge -a =dev-python/astropy-sphinx-theme-1.1
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-python/astropy-sphinx-theme-1.1
Or alternatively:
emerge --autounmask-write -a =dev-python/astropy-sphinx-theme-1.1
# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{12..13} )
DISTUTILS_USE_PEP517=setuptools
PYPI_NO_NORMALIZE=1
inherit distutils-r1 pypi
DESCRIPTION="The sphinx theme for Astropy and affiliated packages"
HOMEPAGE="https://github.com/astropy/astropy-sphinx-theme"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86"
distutils_enable_tests pytest