David Kastrup <dak@gnu.org> writes:

> Please write in English if possible, because the Emacs maintainers
> usually do not have translators to read other languages for them.
>
> Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.
>
> Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug:
>
> Editing a file in AUCTeX, I see the ugly screenshot shown below.

Forgot the screenshot: here it is: