desktop-file-validate /usr/share/applications/chinese-calendar.desktop
/usr/share/applications/chinese-calendar.desktop: warning: value "????" for key "Comment[zh_CN]" in group "Desktop Entry" looks redundant with value "????" of key "Name[zh_CN]"
/usr/share/applications/chinese-calendar.desktop: error: (will be fatal in the future): value "chinesecalendar-64.png" for key "Icon" in group "Desktop Entry" is an icon name with an extension, but there should be no extension as described in the Icon Theme Specification if the value is not an absolute path
/usr/share/applications/chinese-calendar.desktop: hint: value item "RasterGraphics" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Graphics;2DGraphics
/usr/share/applications/chinese-calendar.desktop: hint: value item "Viewer" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Graphics, or Office
Thus:
1. Drop png extension in Icon key.
2. Enhance Categories field, it's up to you.
Thanks.
