/usr/share/elmerfront/lib/ is in elmer-common 6.1.0.svn.5396.dfsg2-4ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/elmerfront/lib/SOLVER.KEYWORDS
/usr/share/elmerfront/lib/SolverAdaptiveFields.edf
/usr/share/elmerfront/lib/SolverGeneric1Fields.edf
/usr/share/elmerfront/lib/SolverGeneric2Fields.edf
/usr/share/elmerfront/lib/SolverGeneric3Fields.edf
/usr/share/elmerfront/lib/SolverGeneric4Fields.edf
/usr/share/elmerfront/lib/SolverLinearFields.edf
/usr/share/elmerfront/lib/SolverMultiGridFields.edf
/usr/share/elmerfront/lib/SolverNonlinearFields.edf
/usr/share/elmerfront/lib/elements.def
/usr/share/elmerfront/lib/front.edf
/usr/share/elmerfront/lib/procedure.stub.txt
/usr/share/elmerfront/lib/rgb.txt