This bug may be related to bug #1518661. Because after the fix in this bug, it flashes white background and rounded corners in the CSD app are white (visible with Ambiance). The white flash effect is more pronounce if we open a large text file in gedit.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1515561 Title: Windows flash black briefly before being drawn Status in GTK+: Confirmed Status in gtk+3.0 package in Ubuntu: Fix Released Bug description: Since 3.18, windows flash black for a split second before they are drawn. It's visually disruptive. To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/1515561/+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