You might want to checkout optionAdd and "perldoc Tk::options". 
#!/usr/bin/perl -w
use strict;
use Tk;

my $mw=tkinit;
$mw->optionAdd("*background"=>'lightblue','userDefault');

$mw->Listbox->pack->insert(0,qw/a listbox/);
$mw->Text->pack->insert('1.0','text widget');
$mw->Entry->pack->insert(0,'entry widget');
MainLoop;

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In reply to Re: Configure default widget options in Tk by zentara
in thread Configure default widget options in Tk by hangon

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