/usr/share/plasma/ is in plasma-mediacenter 4:5.5.5-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/plasma/shells/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/applet/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/applet/AppletError.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/applet/CompactApplet.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/applet/DefaultCompactRepresentation.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/AppletConfiguration.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/ConfigCategoryDelegate.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/ConfigurationContainmentActions.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/ConfigurationContainmentAppearance.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/ConfigurationShortcuts.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/ContainmentConfiguration.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/MouseEventInputButton.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/PanelConfiguration.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/panelconfiguration/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/panelconfiguration/EdgeHandle.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/panelconfiguration/Ruler.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/panelconfiguration/SizeHandle.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/panelconfiguration/SliderHandle.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/configuration/panelconfiguration/ToolBar.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/defaults
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/explorer/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/explorer/AppletAlternatives.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/explorer/AppletDelegate.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/explorer/Tooltip.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/explorer/WidgetExplorer.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/images/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/images/shadow.png
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/layout.js
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/loader.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/views/
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/views/Desktop.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/contents/views/Panel.qml
/usr/share/plasma/shells/org.kde.plasma.mediacenter/metadata.desktop