In the attached screenshot one can see that there is a difference in the color of the outer pixels of the screen edge. In 17.10 there is a darker grey. Both windows were in the front, when the screenshots were taken. To me, due to the less smooth transition of colors, the screen edges in 17.10 look somewhat rough, ripped.
** Attachment added: "window_edges.png" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1727269/+attachment/4998650/+files/window_edges.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727269 Title: Window buttons and window edges are not rendered/designed cleanly - Ubuntu 17.10 Gnome To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1727269/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs