Hi, after all these years, this bug still exists:
$ desktop-file-validate /usr/share/applications/mb-applet-battery.desktop /usr/share/applications/mb-applet-battery.desktop: error: value "PanelApp" for key "Type" in group "Desktop Entry" is not a registered type value ("Application", "Link" and "Directory") /usr/share/applications/mb-applet-battery.desktop: error: (will be fatal in the future): value "miniapm.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/mb-applet-battery.desktop: error: value "Panel;Utility;MB" for key "Categories" in group "Desktop Entry" contains an unregistered value "Panel"; values extending the format should start with "X-" /usr/share/applications/mb-applet-battery.desktop: error: value "Panel;Utility;MB" for key "Categories" in group "Desktop Entry" contains an unregistered value "MB"; values extending the format should start with "X-" And the upstream bug tracker does not seem to be working :<. -- Laurent.