[simplicity theme] How do I get the theme switcher on my forum

[Cookie000]

So I installed the theme Simplicity, and at the bottom there is no theme picker. I have Simplicity Dark and Light.
I want to add a theme switcher so my users can switch between dark and light easily without going to the user cp.

How do I add the theme switcher to the theme?
Please help

---

Oh also, if this is not possible, is there a FREE plugin that does this?

[PARADOX987]

reset the footer_themeselect , footer_themeselector template to the default and check if the theme selector is visible

[Cookie000]

reset the footer_themeselect , footer_themeselector template to the default and check if the theme selector is visible

Didn't do anything

[PARADOX987]

will you please post your footer template

[Cookie000]

will you please post your footer template

  

  </div>
</div>
<script type="text/javascript">
jQuery(function($) {
$("#backtop").hide();
  $(window).scroll(function () {
    if ($(this).scrollTop() > 300) {
      $('#backtop').fadeIn(200);
    } else {
      $('#backtop').fadeOut(200);
    }
  });
  $('.go-top').click(function () {
    $('html,body').animate({
      scrollTop: 0
    }, 1000);
    return false;
  });
});
</script>  		
<div id="footer"><div class="wrapper">
		<div class="upper hide">
			<ul class="menu bottom_links">
				<li><a href="{$mybb->settings['bburl']}/misc.php?action=syndication"><i class="fa fa-rss"></i></a></li>              
				{$contact_us}
				<li><a href="#top">{$lang->bottomlinks_returntop}</a></li>
				<li><a href="<archive_url>">{$lang->bottomlinks_litemode}</a></li>
			</ul>
	</div>
	<div class="lower">
			<span id="copyright">
				<!-- MyBB is free software developed and maintained by a volunteer community.
					It would be much appreciated by the MyBB Group if you left the full copyright and "powered by" notice intact,
					to show your support for MyBB.  If you choose to remove or modify the copyright below,
					you may be refused support on the MyBB Community Forums.

					This is free software, support us and we'll support you. -->
Community Forum Software by <a href="http://www.mybb.com" target="_blank">MyBB{$mybbversion}</a></br>Designed By <a href="http://rooloo.in" target="_blank">Rooloo</a>.
				<!-- End powered by -->
			</span>

	</div>
<div id='backtop'>
    <a class='go-top' href='#top' title='Back to Top'>Top</a>
</div>
</div>
<!-- The following piece of code allows MyBB to run scheduled tasks. DO NOT REMOVE -->{$task_image}<!-- End task image code -->
{$auto_dst_detection}
</div>

[PARADOX987]

add this

{$lang_select}
{$theme_select}

under this <div class="upper hide">