Re: RFC: status icon support

[Richard Stallman]

    The introduction of a new Lisp data type for this purpose looks rather
    unusual compared with what other kinds of existing objects do.

We should not create a new data type for status icons unless there is
a compelling reason for it -- that is to say, not making the data type
would imply serious problems or ugliness.

What is the motive for this data type?  Is it so as to handle X events
for the icon?