diff --git a/slt/css/dynamic-styles.css.php b/slt/css/dynamic-styles.css.php
deleted file mode 100644
index 892150b..0000000
--- a/slt/css/dynamic-styles.css.php
+++ /dev/null
@@ -1,77 +0,0 @@
-<?php
-
-define('_JEXEC', 1);
-define('JPATH_BASE', '../../../');
-require_once JPATH_BASE . '/includes/defines.php';
-require_once JPATH_BASE . '/includes/framework.php';
-
-$container = \Joomla\CMS\Factory::getContainer();
-$container->alias(\Joomla\Session\SessionInterface::class, 'session.web.site');
-$mainframe = $container->get(\Joomla\CMS\Application\SiteApplication::class);
-$template = $mainframe->getTemplate(true);
-$params = $template->params;
-
-header('content-type: text/css');
-
-// duration of cached content (1 hour)
-$offset = 60 * 60;
-// cache control to process
-header("Cache-Control: must-revalidate, max-age=$offset, public");
-
-// expiration header format
-// $ExpStr = "Expires: " . gmdate("D, d M Y H:i:s",time() + $offset) . " GMT";
-// send cache expiration header to broswer
-// header($ExpStr);
-
-$leftImageValue = empty($params['imgleft'])
-    ? 'none'
-    : "url(\"" . JPATH_BASE . $params['imgleft'] . "\")";
-$rightImageValue = empty($params['imgright'])
-    ? 'none'
-    : "url(\"" . JPATH_BASE . $params['imgright'] . "\")";
-?>
-
-<?php if ($params['titlepage'] === '1') {
-    echo "#left-menu { display: none; }\n";
-} ?>
-
-:root {
-	--color-fg-top: <?php echo $params['topfgcolor1']; ?>;
-	--color-bg-top: <?php echo $params['topbgcolor1']; ?>;
-	--color-fg-top-dark: <?php echo $params['topfgcolor2']; ?>;
-	--color-bg-top-dark: <?php echo $params['topbgcolor2']; ?>;
-	--color-fg-top-light: <?php echo $params['topfgcolor3']; ?>;
-	--color-bg-top-light: <?php echo $params['topbgcolor3']; ?>;
-
-	--color-main: <?php echo $params['mainfgcolor']; ?>;
-	--color-main-link: <?php echo $params['mainlicolor']; ?>;
-	--color-header-link: <?php echo $params['headercolor']; ?>;
-
-	--color-page-bg-top: <?php echo $params['mainbgcolortop']; ?>;
-	--color-page-bg-bottom: <?php echo $params['mainbgcolorbot']; ?>;
-
-	--color-menu: <?php echo $params['fgcolor1']; ?>;
-	--color-menu-background: <?php echo $params['bgcolor1']; ?>;
-	--color-menu-active: <?php echo $params['fgcolor2']; ?>;
-	--color-menu-background-active: <?php echo $params['bgcolor2']; ?>;
-
-	--color-effect: <?php echo $params['fgeffect']; ?>;
-	--color-effect-background: <?php echo $params['bgeffect']; ?>;
-	--color-effect-header: <?php echo $params['fgeffecthdr']; ?>;
-	--color-effect-background-header: <?php echo $params['bgeffecthdr']; ?>;
-
-	--color-side-background: <?php echo $params['bgcolorside']; ?>;
-	--image-left-side: <?php echo $leftImageValue; ?>;
-	--image-right-side: <?php echo $rightImageValue; ?>;
-}
-
-<?php // Stop execution here, the rest is for debugging
-
-exit(); ?>
-
-:root {
-	--color-effect: blue;
-	--color-effect-background: red;
-	--color-effect-header: yellow;
-	--color-effect-background-header: green;
-}
diff --git a/slt/index.php b/slt/index.php
index 6b8ccfb..e872134 100644
--- a/slt/index.php
+++ b/slt/index.php
@@ -7,6 +7,7 @@ use Joomla\CMS\Uri\Uri;
 //JHTML::_('behavior.framework', true);
 $app = JFactory::getApplication();
 $doc = JFactory::getDocument();
+$wa = $this->getWebAssetManager();
 
 // Add JavaScript Frameworks
 JHtml::_('bootstrap.framework');
@@ -25,11 +26,40 @@ JHtml::_('stylesheet', 'style.css', ['version' => 'auto', 'relative' => true]);
 $doc->addStyleSheet(
     $this->baseurl . '/media/system/css/joomla-fontawesome.css'
 );
-$doc->addStyleSheet(
-    $this->baseurl .
-        '/templates/slt/css/dynamic-styles.css.php?Itemid=' .
-        $app->input->getInt('Itemid')
-);
+
+$params = $this->params;
+
+$leftImageValue = empty($params['imgleft'])
+    ? 'none'
+    : "url(\"" . JPATH_BASE . $params['imgleft'] . "\")";
+$rightImageValue = empty($params['imgright'])
+    ? 'none'
+    : "url(\"" . JPATH_BASE . $params['imgright'] . "\")";
+
+$wa->addInlineStyle(":root {
+	--color-fg-top: {$params['topfgcolor1']};
+	--color-bg-top: {$params['topbgcolor1']};
+	--color-fg-top-dark: {$params['topfgcolor2']};
+	--color-bg-top-dark: {$params['topbgcolor2']};
+	--color-fg-top-light: {$params['topfgcolor3']};
+	--color-bg-top-light: {$params['topbgcolor3']};
+	--color-main: {$params['mainfgcolor']};
+	--color-main-link: {$params['mainlicolor']};
+	--color-header-link: {$params['headercolor']};
+	--color-page-bg-top: {$params['mainbgcolortop']};
+	--color-page-bg-bottom: {$params['mainbgcolorbot']};
+	--color-menu: {$params['fgcolor1']};
+	--color-menu-background: {$params['bgcolor1']};
+	--color-menu-active: {$params['fgcolor2']};
+	--color-menu-background-active: {$params['bgcolor2']};
+	--color-effect: {$params['fgeffect']};
+	--color-effect-background: {$params['bgeffect']};
+	--color-effect-header: {$params['fgeffecthdr']};
+	--color-effect-background-header: {$params['bgeffecthdr']};
+	--color-side-background: {$params['bgcolorside']};
+	--image-left-side: {$leftImageValue};
+	--image-right-side: {$rightImageValue};
+}");
 
 // Add Javascript for mobile menu
 JHtml::_('script', 'mobile.js', ['version' => 'auto', 'relative' => true]);
@@ -40,7 +70,6 @@ JHtml::_('stylesheet', 'user.css', ['version' => 'auto', 'relative' => true]);
 // Check for a custom js file
 JHtml::_('script', 'user.js', ['version' => 'auto', 'relative' => true]);
 ?>
-
 <?php echo '<!DOCTYPE html>'; ?>
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $this->language; ?>" lang="<?php echo $this->language; ?>" dir="<?php echo $this->direction; ?>" >