D25822: Add manual test for changing colorscope in components

[David Edmundson]

davidedmundson added a reviewer: filipf.

REPOSITORY
  R242 Plasma Framework (Library)

REVISION DETAIL
  https://phabricator.kde.org/D25822

To: davidedmundson, filipf
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns