The Athena widget set allows the redefinition of button labels by resource
files. All other texts have also been made reconfigurable. The X-window
system uses the contents of the LANG environment variable to
select the path for the resource file (application defaults file).
Just for fun, try
export LANG=german; xpat2
or
export LANG=italian; xpat2
or
export LANG=french; xpat2.
Please note that the keyboard bindings may also change (confirm may be
``j'', or ``s'', or ``o'', then). Other languages are in
preparation.