/usr/share/anjuta/templates/gtk/ is in anjuta-common 2:3.22.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/anjuta/templates/gtk/po/
/usr/share/anjuta/templates/gtk/po/POTFILES.in
/usr/share/anjuta/templates/gtk/src/
/usr/share/anjuta/templates/gtk/src/Makefile.am.tpl
/usr/share/anjuta/templates/gtk/src/main.c
/usr/share/anjuta/templates/gtk/src/project.ui
/usr/share/anjuta/templates/gtkapplication/po/
/usr/share/anjuta/templates/gtkapplication/po/POTFILES.in
/usr/share/anjuta/templates/gtkapplication/src/
/usr/share/anjuta/templates/gtkapplication/src/Makefile.am.tpl
/usr/share/anjuta/templates/gtkapplication/src/application.c
/usr/share/anjuta/templates/gtkapplication/src/application.h
/usr/share/anjuta/templates/gtkapplication/src/main.c
/usr/share/anjuta/templates/gtkapplication/src/project.ui
/usr/share/anjuta/templates/gtkmm/po/
/usr/share/anjuta/templates/gtkmm/po/POTFILES.in
/usr/share/anjuta/templates/gtkmm/src/
/usr/share/anjuta/templates/gtkmm/src/Makefile.am.tpl
/usr/share/anjuta/templates/gtkmm/src/main.cc
/usr/share/anjuta/templates/gtkmm/src/project.ui