The button well thing is mostly fixed in the latest version in the branch (0.1.5.9). There is a small bug with unfocused windows. The background of the left button on the right side is chosen to be "trough_right", instead of "trough_left".
Here's a patch that solves this.
There is also an issue with windows that have only a single close button, like the Run dialog, but its not only with RTL locales, so I guess it doesn't belong here.
The button well thing is mostly fixed in the latest version in the branch (0.1.5.9). There is a small bug with unfocused windows. The background of the left button on the right side is chosen to be "trough_right", instead of "trough_left".
Here's a patch that solves this.
There is also an issue with windows that have only a single close button, like the Run dialog, but its not only with RTL locales, so I guess it doesn't belong here.