[Kevin Walzer] provides this before-and-after comparison:
[http://www.wordtech-software.com/notile.jpg] vs.
[http://www.wordtech-software.com/tile.jpg]

These shots were taken under [MacOS X].  Kevin writes:
"[[t]]he differences are pretty clear: the         
[Tile] version picks up the pinstripe background, and also the [entry]              
[widget] looks native (without the outline that one sees in the standard          
[Tk] version)."