D19020: [breeze-icons] Revamp system.svgz

[Krešimir Čohar]

rooty edited the test plan for this revision.

REPOSITORY
  R242 Plasma Framework (Library)

REVISION DETAIL
  https://phabricator.kde.org/D19020

To: rooty, #vdg, #plasma, ngraham, abetts
Cc: ndavis, broulik, kde-frameworks-devel, michaelh, ngraham, bruns