SS 15Mar2004: In a tclcore ML thread about a better default Tk look&feel for Unix systems, Jeff Hobbs sent an interesting file with a style for Tk (see http://aspn.activestate.com/ASPN/Mail/Message/Tcl-core/2022026 ). Since Jeff states in the email that the code can be considered Tcl-licensed, it may be more comfortable for potential users to put it in some accessible place. For now you can download it from this link:
http://tcllib.sourceforge.net/TkLook/as_style.tcl.txt