sub configure_option_database {
    ...
    my $priority = 'startupFile'; # 40
    ...
    # Button
    $mw->optionAdd('*Button*borderWidth', 1, $priority);
    $mw->optionAdd('*Button*activeBorderWidth', 1, $priority);
    ...
    # Entry
    $mw->optionAdd('*Entry*background', '#ffffff', $priority);
    $mw->optionAdd('*Entry*borderWidth', 1, $priority);
    $mw->optionAdd('*Entry*cursor', 'xterm', $priority);
    ...
}