use strict;
use warnings;
use Tkx;
my $mw = Tkx::widget->new(".");
  $mw->g_wm_title("Jobs Not Forecasted");
    Tkx::button(".b",
        -text => "18-Letters",
        -background => "red",
        -width => 11,
-command => sub { print "18L\n"; print "18L #2\n"; },  # OK
#  -command => sub { print "18L\n"; Tkx::.b::call(".b", "configure", "-background", "blue"); },    # BAD, runtime error
#  -command => sub { print "18L\n"; Tkx::button::call(".b", "configure", "-background", "blue"); },# BAD, runtime error
#  -command => sub { print "18L\n"; Tkx::".b"::call(".b", "configure", "-background", "blue"); },  # BAD, syntax error
    );
    Tkx::pack(".b");
                    
    Tkx::button(".s",
        -text => "EXIT",
        -width => 11,
        -command => sub { Tkx::destroy("."); },
    );
    Tkx::pack(".s");
    Tkx::MainLoop();