D15866: Reduce emblem size for very small icons to prevent obscuring too much of the icon

[Nathaniel Graham]

ngraham added a task: T9740: Improve disk presentation in the Places panel.

REPOSITORY
  R302 KIconThemes

REVISION DETAIL
  https://phabricator.kde.org/D15866

To: ngraham, #frameworks, #dolphin, #vdg
Cc: kde-frameworks-devel, michaelh, ngraham, bruns