settings/templates/panels/admin/license.php
<?php
script('settings', 'panels/license');
?>
<div class="section">
<h2 class="app-name"><?php p($l->t('Enterprise license key'));?></h2>
<div id="license_message_div" <?php print_unescaped($_['divMessageClass']); ?>>
<?php foreach ($_['messageInfo']['translated_message'] as $lineNumber => $line): ?>
<?php if (\in_array($lineNumber, $_['messageInfo']['contains_html'], true)): ?>
<p><?php print_unescaped($line); ?></p>
<?php else: ?>
<p><?php p($line); ?></p>
<?php endif; ?>
<?php endforeach; ?>
</div>
<div>
<?php p($l->t('Enter a new license:')); ?>
<input id="license_input_text" type="text" style="width: 350px; max-width: 100%" />
<input id="license_input_button" type="button" value="<?php p($l->t('Save')); ?>"/>
<br>
<input id="license_remove_button" type="button" value="<?php p($l->t('Remove current license key')); ?>"/>
</div>
</div>