I don't think there is a policy, other than "packages should have
the
same name they have upstream" (I'm not sure if that's written
anywhere,
but it seems logical). For example, if the upstream tarball is
called
"thepowdertoy-0.1.tar.gz" or something, then "thepowdertoy" is a
sensible name. You can also use the main executable's name as
reference
which normally has the same name as the tarball.
Well, the executable is named "powder", but the git repo upstream it
called "The-Powder-Toy". I'll ask upstream if they have any
preference
over the two, and then I'll get back to you guys.