/usr/lib/libgammaray_ui-qt5_9-x86_64.so is in gammaray-dev 2.7.0-1ubuntu8.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgammaray_ui-qt5_9-x86_64.so.2.7.0
/usr/lib/libgammaray_ui-qt5_9-x86_64.so.2.7.0