/usr/share/texmf/tex/latex/beamer/base/themes/theme/ is in latex-beamer 3.24-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeAnnArbor.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeAntibes.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeBergen.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeBerkeley.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeBerlin.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeBoadilla.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeCambridgeUS.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeCopenhagen.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeDarmstadt.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeDresden.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeEastLansing.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeFrankfurt.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeGoettingen.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeHannover.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeIlmenau.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeJuanLesPins.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeLuebeck.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeMadrid.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeMalmoe.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeMarburg.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeMontpellier.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemePaloAlto.sty
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/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeSingapore.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeSzeged.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeWarsaw.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemeboxes.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/beamerthemedefault.sty
/usr/share/texmf/tex/latex/beamer/base/themes/theme/compatibility/
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/usr/share/texmf/tex/latex/beamer/base/themes/theme/compatibility/beamerthemetree.sty