Steps to reproduce: Change your default gtk font to a bold one Open a window Click on the task in the taskbar to minimize the window Click on the task again to show the window again The text in the taskbar is not bold anymore The bug is found in XFCE 4.6.0 on Arch Linux
In 4.6 a libwnck issue, will fix this in 4.8 in our own task list.
Devel branch has been merged in master. A 4.7.0 release will follow soon. If you think this bug is not fixed? Feel free to reopen the bug.