The xbm files from XEMACS-20.4/etc/frame-icon/ are not distributed with
XEmacs-21.0 anymore. Of course: no default XEmacs package uses it.
But the point is: my XEmacs package x-symbol
http://www.fmi.uni-passau.de/~wedler/x-symbol/
uses some of them. The questions are
(1) Were there copyright problems with these files?
(2) If not 1, may I distribute some of them with my package?
(3) If 2, who is the author/designer of these icons (to be mentioned in
the "thanks" section)?
Hope not to have bothered you with non-general-interest questions,
- Christoph