D10170: Added optional transparency/blur to menu frames

[Alex Nemeth]

anemeth added a project: Breeze.

REPOSITORY
  R31 Breeze
REVISION DETAIL
  https://phabricator.kde.org/D10170

To: anemeth, hpereiradacosta, #plasma, #vdg
Cc: ngraham, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, 
jensreuterberg, abetts, sebas, apol, mart