/usr/share/javascript/jquery-ui/themes/base/ is in libjs-jquery-ui 1.12.1+dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/javascript/jquery-ui/themes/base/accordion.css
/usr/share/javascript/jquery-ui/themes/base/accordion.min.css
/usr/share/javascript/jquery-ui/themes/base/all.css
/usr/share/javascript/jquery-ui/themes/base/all.min.css
/usr/share/javascript/jquery-ui/themes/base/autocomplete.css
/usr/share/javascript/jquery-ui/themes/base/autocomplete.min.css
/usr/share/javascript/jquery-ui/themes/base/base.css
/usr/share/javascript/jquery-ui/themes/base/base.min.css
/usr/share/javascript/jquery-ui/themes/base/button.css
/usr/share/javascript/jquery-ui/themes/base/button.min.css
/usr/share/javascript/jquery-ui/themes/base/checkboxradio.css
/usr/share/javascript/jquery-ui/themes/base/checkboxradio.min.css
/usr/share/javascript/jquery-ui/themes/base/controlgroup.css
/usr/share/javascript/jquery-ui/themes/base/controlgroup.min.css
/usr/share/javascript/jquery-ui/themes/base/core.css
/usr/share/javascript/jquery-ui/themes/base/core.min.css
/usr/share/javascript/jquery-ui/themes/base/datepicker.css
/usr/share/javascript/jquery-ui/themes/base/datepicker.min.css
/usr/share/javascript/jquery-ui/themes/base/dialog.css
/usr/share/javascript/jquery-ui/themes/base/dialog.min.css
/usr/share/javascript/jquery-ui/themes/base/draggable.css
/usr/share/javascript/jquery-ui/themes/base/draggable.min.css
/usr/share/javascript/jquery-ui/themes/base/images/
/usr/share/javascript/jquery-ui/themes/base/images/ui-bg_flat_0_aaaaaa_40x100.png
/usr/share/javascript/jquery-ui/themes/base/images/ui-icons_444444_256x240.png
/usr/share/javascript/jquery-ui/themes/base/images/ui-icons_555555_256x240.png
/usr/share/javascript/jquery-ui/themes/base/images/ui-icons_777620_256x240.png
/usr/share/javascript/jquery-ui/themes/base/images/ui-icons_777777_256x240.png
/usr/share/javascript/jquery-ui/themes/base/images/ui-icons_cc0000_256x240.png
/usr/share/javascript/jquery-ui/themes/base/images/ui-icons_ffffff_256x240.png
/usr/share/javascript/jquery-ui/themes/base/jquery-ui.css
/usr/share/javascript/jquery-ui/themes/base/jquery-ui.min.css
/usr/share/javascript/jquery-ui/themes/base/menu.css
/usr/share/javascript/jquery-ui/themes/base/menu.min.css
/usr/share/javascript/jquery-ui/themes/base/progressbar.css
/usr/share/javascript/jquery-ui/themes/base/progressbar.min.css
/usr/share/javascript/jquery-ui/themes/base/resizable.css
/usr/share/javascript/jquery-ui/themes/base/resizable.min.css
/usr/share/javascript/jquery-ui/themes/base/selectable.css
/usr/share/javascript/jquery-ui/themes/base/selectable.min.css
/usr/share/javascript/jquery-ui/themes/base/selectmenu.css
/usr/share/javascript/jquery-ui/themes/base/selectmenu.min.css
/usr/share/javascript/jquery-ui/themes/base/slider.css
/usr/share/javascript/jquery-ui/themes/base/slider.min.css
/usr/share/javascript/jquery-ui/themes/base/sortable.css
/usr/share/javascript/jquery-ui/themes/base/sortable.min.css
/usr/share/javascript/jquery-ui/themes/base/spinner.css
/usr/share/javascript/jquery-ui/themes/base/spinner.min.css
/usr/share/javascript/jquery-ui/themes/base/tabs.css
/usr/share/javascript/jquery-ui/themes/base/tabs.min.css
/usr/share/javascript/jquery-ui/themes/base/theme.css
/usr/share/javascript/jquery-ui/themes/base/theme.min.css
/usr/share/javascript/jquery-ui/themes/base/tooltip.css
/usr/share/javascript/jquery-ui/themes/base/tooltip.min.css