D5595: Configurable icon size

[Eike Hein]

hein added a reviewer: mart.

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D5595

To: hein, mart
Cc: mart, plasma-devel, spstarr, progwolff, Zren, lesliezhai, ali-mohamed, 
jensreuterberg, abetts, sebas, apol, lukas