Tag: desktop-entry-invalid-category Severity: warning Check: menu-format Explanation: This desktop entry shows a category that is not among the registered "main" or "additional" categories in the FreeDesktop specification. . The values are case-sensitive. Whitespace is only allowed just before and after the equals sign in the Category key, and nowhere else. . The desktop-file-validate tool in the desktop-file-utils package is useful when checking the syntax of desktop entries. See-Also: https://specifications.freedesktop.org/menu-spec/latest/apa.html