@Andrea, I don't understand what you meant by "you can simply can add a special style class if needed."
I have attached a standalone testcase which demonstrates the bug. The testcase is a toplevel window which contains a single widget -- a subclassed EventBox that renders a handle centered within the window. Please note that the only drawing in this testcase -- including the background -- is done by GtkRenderHandle *which is rendered by the unico engine*. The testcase styles the widget with a css fragment defined in main() as faux_theme. Feel free to "add a special style class" to the faux_theme definition so that the testcase output matches the reference image which I will also attach. ** Attachment added: "main.c" https://bugs.launchpad.net/ubuntu/+source/gtk3-engines-unico/+bug/920832/+attachment/2832301/+files/main.c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/920832 Title: Handle not rendered properly if border-width = 0 To manage notifications about this bug go to: https://bugs.launchpad.net/light-themes/+bug/920832/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs