To be able to use translations from Launchpad for .desktop files, the .desktop files must have a line like: X-Ubuntu-Gettext-Domain=TRANSLATION_DOMAIN where TRANSLATION_DOMAIN is the one used by the application, in this case, 'gparted'.
To be able to use translations from Launchpad for .desktop files, the .desktop files must have a line like: Gettext- Domain= TRANSLATION_ DOMAIN where TRANSLATION_DOMAIN is the one used by the application, in this case, 'gparted'.
X-Ubuntu-