Created attachment 4232
window manager tweaks window
There is a cut text in tab Placement next next to the slider. Observe screenshot.
Steps to replicate:
1. Go to "Applications menu"
2. Open "Settings" > "Settings manager"
3. double click on "Window Manager Tweaks" to open it
4. Go to tab "Placement" and observe there's a cut text in word "Small" next to the slider. Observe screenshot attached.
Unable to reproduce with the code from git, 8/29/12.
Not an Xfwm4 bug, either your GTK+ theme or a GTK+ bug.