[opensuse] how to make the desktop preview image larger?

Hi, here on leap 42.1 with that plasma 5, using classic desktop (folder view). When hovering an icon a tooltip is shown. If it was an image, a pdf, a textfile... in earlier KDE's that image was shown as a larger prewiev just as in dolphin, which was very useful. Now that preview is very small, even smaller than the icon itself. I am (almost) sure there must be a setting somewhere, but I cannot find it. Can you? And would you tell me where? Thanks! Daniel -- Daniel Bauer photographer Basel Barcelona http://www.daniel-bauer.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org