The KDE Plasma Desktop Environment, extras installation.
Contains core KDE Plasma plus:
 * Okular - universal Document Viewer
 * Kate- text editor
 * Gwenview - image viewer
 * Spectacle- screenshot capture utility
 * Kcalc - calculator
 * Ark - file compression/decompression utility
 * Merkuro - kalendar application
 * KDE Connect - integrates your smartphone with KDE
