Here is an updated example

#!/usr/bin/perl --
use strict; use warnings;
use Tkx;
use Log::Log4perl; Log::Log4perl->easy_init( $Log::Log4perl::INFO  );

Main( @ARGV );
exit( 0 );


sub Main {
#~     $Tkx::TRACE=64;
    Tkx::package_require('tile');
    Tkx::ttk__setTheme('xpnative');#Tkx::tile__setTheme('xpnative');
    
    
    my $logger = Log::Log4perl->get_logger; ## jellisii2
    my $appender = Log::Log4perl::Appender::String2->new; ## jellisii2
    $logger->add_appender($appender); ## jellisii2
    
    
    
    
    my $mw = Tkx::widget->new(".");


    my $eee = $mw->new_entry(
        -textvariable => $appender->string_ref,  ## jellisii2
    );
    $eee->g_pack(
        -fill => "x", -expand => 1
    );


    my $t = $mw->new_text(
        -padx => 5,
        -pady => 5,
        -background => "white",
    ); $t->g_pack;
    
    $appender->tktext( $t ); ## jellisii2
    
    
    
    my $b = $mw->new_ttk__button(
        -text => 'Hello, world',
        -command => sub {
            $logger->info("hi"); ## jellisii2
        },
    ); $b->g_pack;

    $b->configure();
    
    $logger->info("it begins"); ## jellisii2
    
    Tkx::MainLoop();


    
}

BEGIN {
    $INC{'Log/Log4perl/Appender/String2.pm'} = __FILE__;
    package Log::Log4perl::Appender::String2;
    use Log::Log4perl::Appender;
    our @ISA = qw(Log::Log4perl::Appender);
    
    sub new {
        my $proto  = shift;
        my $class  = ref $proto || $proto;
        my %params = @_;

        my $self = {
            name      => "unknown name",
            string    => "",
            %params,
        };

        bless $self, $class;
    }

    sub log {
        my ($self, $p, $category, $level, $cache) = @_;
        my %params = %$p;
        if( my $status_text = $self->{tktext} ){
            # text control has to be enabled to write to it.  
            $status_text->configure(-state => "normal");

### this ought to be handeled through layout_class / layout_pattern
            $status_text->insert(
                "end",
                join '',
                scalar(gmtime),
                ' jellisii2 ',
                @{$params{message}},
                "\n",
            );
            $status_text->see("end");

            # Don't want the user editing this...
            $status_text->configure(-state => "disabled");
            eval { $status_text->update(); 1} or eval { Tkx::update();
+ };
        }
        
        $self->{string} .= join '', '(', @{ $params{message} }, ')';
    }
    
    sub string { # getter/setter
        my($self, $new) = @_;

        if(defined $new) {
            $self->{string} = $new;
        }

        return $self->{string};
    }
    
    sub tktext { # getter/setter
        my($self, $new) = @_;
        if(defined $new) {
            $self->{tktext} = $new;
        }

        return $self->{tktext};
    }

    sub string_ref { # getter
        my($self ) = @_;
        return \$self->{string};
    }
    1;

}
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