D13232: introduce Custom color set

[Marco Martin]

mart added a comment.


  F5880591: image.png <https://phabricator.kde.org/F5880591>

REPOSITORY
  R169 Kirigami

REVISION DETAIL
  https://phabricator.kde.org/D13232

To: mart, #kirigami
Cc: plasma-devel, apol, davidedmundson, mart, hein