[aprssig] how do we designate alternate igate / digipeaters

[Robert Bruninga]

>>> We are setting up digis...and igates for alternate frequencies...
>>> Any suggestions on ... to make it easier to distinguish on the map.

>> Use the overlay A on the symbol.


> Except that for the majority of programs...
> overlaying most of the icons...
> will result in an unreadable mess.

True.  We offer no easy solution.  Programmers usually do not like me to
tell them how to implement things, so we left that up to the authors.
Kenwood simply displays the Overlay in the upper left corner of a Pixel
field.  As stephen points out, this may  not work for many of the standard
icons.  So eventually we need to evolve to a better way to do this.

The reason we extended the overlays to all symbols was to give us a nearly
unlimited supply of symbols (3000+) compared to the original <200.

Bob, Wb4aPR