Seems that it was bug in UbuntuShape's shader. I think that it was already fixed.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in Ubuntu. https://bugs.launchpad.net/bugs/1228879 Title: Curve in video thumbnails worsens image quality Status in Ubuntu UI Toolkit: Incomplete Status in “ubuntu-ui-toolkit” package in Ubuntu: Incomplete Status in “unity-lens-video” package in Ubuntu: Confirmed Bug description: Not sure what the effect is called that's used in the top of the ubuntu shape containing an image but it seems to corrupt any image inside it. I've seen it in the RSS reader and now more pronounced the video lens. Look at the top of any image in this screenshot. They are all badly corrupted, aside from the low quality image (bug 1228877). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-ui-toolkit/+bug/1228879/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp