1) desktop-file-validate basic256.desktop
./basic256.desktop: hint: value "Education;Science;ComputerScience;" for key "Categories" in group "Desktop Entry" contains more than one main category; application might appear more than once in the application menu
2) missing GenericName
GenericName is a tooltip for the Classic Style Menu KDE and is an item for the Modern Style Menu KDE.
3) I have new translations for Comment
There is patch in attachment.
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