I am using Breeze Dark desktop theme and Breeze light icon theme. ownCloud icon is hardly visible if I use light icon theme. If I use dark icon theme with Breeze light color theme then all icons go invisible on my system. ownCloud icon was just fine before the update with the sam setup. I can't use Breeze light desktop theme because I can hardly see in the light background. I need that dark background and contrast. Reproducible: Always
Created attachment 96154 [details] screenshot of hardly visible ownCloud icon
Border is again white and icon is visible. So I am closing this bug. I do have to say that empty icons with only border around them have very low visibility. I have to pressure my eyes to be able to tell which icon it might be. And 70-80% icons have some white inside them so the ones that are empty look poor and are hardly visible.