basic256-2.0.99.10-alt1.x86_64 freedesktop-desktop info desktop-file-validate utility printed the following message(s): /usr/share/applications/basic256.desktop: hint: value "Education;Science;ComputerScience;Development;IDE;" for key "Categories" in group "Desktop Entry" contains more than one main category; application might appear more than once in the application menu; /usr/share/applications/basic256.desktop: hint: value "Education;Science;ComputerScience;Development;IDE;" for key "Categories" in group "Desktop Entry" contains more than one main category; application might appear more than once in the application menu;