phpmyadmin/templates/database/structure/tracking_icon.phtml

<a href="tbl_tracking.php<?php echo $url_query; ?>&amp;table=<?php echo $truename; ?>">
    <?php if ($is_tracked): ?>
        <?php echo PMA_Util::getImage(
            'eye.png', __('Tracking is active.')
        ); ?>
    <?php else: ?>
        <?php echo PMA_Util::getImage(
            'eye_grey.png', __('Tracking is not active.')
        ); ?>
    <?php endif; ?>
</a>