diff --git a/include/admin/Tools/Errors.php b/include/admin/Tools/Errors.php
index cd47df8..6d1c154 100644
--- a/include/admin/Tools/Errors.php
+++ b/include/admin/Tools/Errors.php
@@ -18,7 +18,6 @@ class Errors extends \gp\special\Base{
 				E_USER_ERROR		=> 'User Error',
 				E_USER_WARNING 		=> 'User Warning',
 				E_USER_NOTICE		=> 'User Notice',
-				E_STRICT			=> 'Strict Notice',
 				E_RECOVERABLE_ERROR => 'Recoverable Error',
 				E_DEPRECATED		=> 'Deprecated',
 				E_USER_DEPRECATED	=> 'User Deprecated',
diff --git a/include/common.php b/include/common.php
index 35b2fe7..ca1032c 100644
--- a/include/common.php
+++ b/include/common.php
@@ -177,7 +177,6 @@ function showError($errno, $errmsg, $filename, $linenum, $vars=null, $backtrace=
 		E_USER_ERROR		=> 'User Error',
 		E_USER_WARNING 		=> 'User Warning',
 		E_USER_NOTICE		=> 'User Notice',
-		E_STRICT			=> 'Strict Notice',
 		E_RECOVERABLE_ERROR => 'Recoverable Error',
 		E_DEPRECATED		=> 'Deprecated',
 		E_USER_DEPRECATED	=> 'User Deprecated',
@@ -189,11 +188,6 @@ function showError($errno, $errmsg, $filename, $linenum, $vars=null, $backtrace=
 		return false;
 	}
 
-	// since we supported older versions of php, there may be a lot of strict errors
-	if( $errno === E_STRICT ){
-		return true;
-	}
-
 	//get the backtrace and function where the error was thrown
 	if( !$backtrace ){
 		$backtrace = debug_backtrace();
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/CallableBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/CallableBlock.php
index a18a87c..9b32d8c 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/CallableBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/CallableBlock.php
@@ -14,6 +14,7 @@ namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
 use ScssPhp\ScssPhp\Compiler\Environment;
+use ScssPhp\ScssPhp\Node\Number;
 
 /**
  * @internal
@@ -26,7 +27,7 @@ class CallableBlock extends Block
     public $name;
 
     /**
-     * @var array|null
+     * @var list<array{string, array|Number|null, bool}>|null
      */
     public $args;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/DirectiveBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/DirectiveBlock.php
index b1d3d1a..22b346e 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/DirectiveBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/DirectiveBlock.php
@@ -13,6 +13,7 @@
 namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
+use ScssPhp\ScssPhp\Node\Number;
 use ScssPhp\ScssPhp\Type;
 
 /**
@@ -26,7 +27,7 @@ class DirectiveBlock extends Block
     public $name;
 
     /**
-     * @var string|array|null
+     * @var array|Number|null
      */
     public $value;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/EachBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/EachBlock.php
index b328957..1217994 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/EachBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/EachBlock.php
@@ -13,6 +13,7 @@
 namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
+use ScssPhp\ScssPhp\Node\Number;
 use ScssPhp\ScssPhp\Type;
 
 /**
@@ -26,7 +27,7 @@ class EachBlock extends Block
     public $vars = [];
 
     /**
-     * @var array
+     * @var array|Number
      */
     public $list;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/ElseifBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/ElseifBlock.php
index 4622bca..f732c2d 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/ElseifBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/ElseifBlock.php
@@ -13,6 +13,7 @@
 namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
+use ScssPhp\ScssPhp\Node\Number;
 use ScssPhp\ScssPhp\Type;
 
 /**
@@ -21,7 +22,7 @@ use ScssPhp\ScssPhp\Type;
 class ElseifBlock extends Block
 {
     /**
-     * @var array
+     * @var array|Number
      */
     public $cond;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/ForBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/ForBlock.php
index a9cf673..9629441 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/ForBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/ForBlock.php
@@ -13,6 +13,7 @@
 namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
+use ScssPhp\ScssPhp\Node\Number;
 use ScssPhp\ScssPhp\Type;
 
 /**
@@ -26,12 +27,12 @@ class ForBlock extends Block
     public $var;
 
     /**
-     * @var array
+     * @var array|Number
      */
     public $start;
 
     /**
-     * @var array
+     * @var array|Number
      */
     public $end;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/IfBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/IfBlock.php
index 9f21bf8..659c7c2 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/IfBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/IfBlock.php
@@ -13,6 +13,7 @@
 namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
+use ScssPhp\ScssPhp\Node\Number;
 use ScssPhp\ScssPhp\Type;
 
 /**
@@ -21,7 +22,7 @@ use ScssPhp\ScssPhp\Type;
 class IfBlock extends Block
 {
     /**
-     * @var array
+     * @var array|Number
      */
     public $cond;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Block/MediaBlock.php b/include/thirdparty/ScssPhp/ScssPhp/Block/MediaBlock.php
index c49ee1b..ab975c7 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Block/MediaBlock.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Block/MediaBlock.php
@@ -13,6 +13,7 @@
 namespace ScssPhp\ScssPhp\Block;
 
 use ScssPhp\ScssPhp\Block;
+use ScssPhp\ScssPhp\Node\Number;
 use ScssPhp\ScssPhp\Type;
 
 /**
@@ -21,7 +22,7 @@ use ScssPhp\ScssPhp\Type;
 class MediaBlock extends Block
 {
     /**
-     * @var string|array|null
+     * @var string|array|Number|null
      */
     public $value;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Compiler.php b/include/thirdparty/ScssPhp/ScssPhp/Compiler.php
index 86c3a8a..3034537 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Compiler.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Compiler.php
@@ -140,13 +140,28 @@ class Compiler
     /** @deprecated */
     public static $Infinity     = [Type::T_KEYWORD, 'Infinity'];
     public static $null         = [Type::T_NULL];
+    /**
+     * @internal
+     */
     public static $nullString   = [Type::T_STRING, '', []];
+    /**
+     * @internal
+     */
     public static $defaultValue = [Type::T_KEYWORD, ''];
+    /**
+     * @internal
+     */
     public static $selfSelector = [Type::T_SELF];
     public static $emptyList    = [Type::T_LIST, '', []];
     public static $emptyMap     = [Type::T_MAP, [], []];
     public static $emptyString  = [Type::T_STRING, '"', []];
+    /**
+     * @internal
+     */
     public static $with         = [Type::T_KEYWORD, 'with'];
+    /**
+     * @internal
+     */
     public static $without      = [Type::T_KEYWORD, 'without'];
     private static $emptyArgumentList = [Type::T_LIST, '', [], []];
 
@@ -571,7 +586,7 @@ class Compiler
 
             $sourceMap = null;
 
-            if (! empty($out) && $this->sourceMap && $this->sourceMap !== self::SOURCE_MAP_NONE) {
+            if (! empty($out) && $this->sourceMap !== self::SOURCE_MAP_NONE && $this->sourceMap) {
                 assert($sourceMapGenerator !== null);
                 $sourceMap = $sourceMapGenerator->generateJson($prefix);
                 $sourceMapUrl = null;
@@ -1656,6 +1671,7 @@ class Compiler
                 $parser = $this->parserFactory(__METHOD__);
 
                 if ($parser->parseValue($buffer, $reParsedWith)) {
+                    \assert(\is_array($reParsedWith));
                     $withCondition = $reParsedWith;
                 }
             }
@@ -5036,7 +5052,7 @@ EOL;
      *
      * @return array
      */
-    protected function multiplyMedia(Environment $env = null, $childQueries = null)
+    protected function multiplyMedia(?Environment $env = null, ?array $childQueries = null)
     {
         if (
             ! isset($env) ||
@@ -5128,7 +5144,7 @@ EOL;
      *
      * @return \ScssPhp\ScssPhp\Compiler\Environment
      */
-    protected function pushEnv(Block $block = null)
+    protected function pushEnv(?Block $block = null)
     {
         $env = new Environment();
         $env->parent = $this->env;
@@ -5192,7 +5208,7 @@ EOL;
      *
      * @return void
      */
-    protected function set($name, $value, $shadow = false, Environment $env = null, $valueUnreduced = null)
+    protected function set($name, $value, $shadow = false, ?Environment $env = null, $valueUnreduced = null)
     {
         $name = $this->normalizeName($name);
 
@@ -5298,7 +5314,7 @@ EOL;
      *
      * @return mixed|null
      */
-    public function get($name, $shouldThrow = true, Environment $env = null, $unreduced = false)
+    public function get($name, $shouldThrow = true, ?Environment $env = null, $unreduced = false)
     {
         $normalizedName = $this->normalizeName($name);
         $specialContentKey = static::$namespaces['special'] . 'content';
@@ -5363,7 +5379,7 @@ EOL;
      *
      * @return bool
      */
-    protected function has($name, Environment $env = null)
+    protected function has($name, ?Environment $env = null)
     {
         return ! \is_null($this->get($name, false, $env));
     }
@@ -5702,9 +5718,35 @@ EOL;
             @trigger_error('Omitting the argument declaration when registering custom function is deprecated and won\'t be supported in ScssPhp 2.0 anymore.', E_USER_DEPRECATED);
         }
 
+        if ($this->reflectCallable($callback)->getNumberOfRequiredParameters() > 1) {
+            @trigger_error('The second argument passed to the callback of custom functions is deprecated and won\'t be supported in ScssPhp 2.0 anymore. Register a callback accepting only 1 parameter instead.', E_USER_DEPRECATED);
+        }
+
         $this->userFunctions[$this->normalizeName($name)] = [$callback, $argumentDeclaration];
     }
 
+    /**
+     * @return \ReflectionFunctionAbstract
+     */
+    private function reflectCallable(callable $c)
+    {
+        if (\is_object($c) && !$c instanceof \Closure) {
+            $c = [$c, '__invoke'];
+        }
+
+        if (\is_string($c) && false !== strpos($c, '::')) {
+            $c = explode('::', $c, 2);
+        }
+
+        if (\is_array($c)) {
+            return new \ReflectionMethod($c[0], $c[1]);
+        }
+
+        \assert(\is_string($c) || $c instanceof \Closure);
+
+        return new \ReflectionFunction($c);
+    }
+
     /**
      * Unregister function
      *
@@ -5841,13 +5883,13 @@ EOL;
 
                     if (! \is_null($file)) {
                         if (\is_array($dir)) {
-                            $callableDescription = (\is_object($dir[0]) ? \get_class($dir[0]) : $dir[0]).'::'.$dir[1];
+                            $callableDescription = (\is_object($dir[0]) ? \get_class($dir[0]) : $dir[0]) . '::' . $dir[1];
                         } elseif ($dir instanceof \Closure) {
                             $r = new \ReflectionFunction($dir);
                             if (false !== strpos($r->name, '{closure}')) {
                                 $callableDescription = sprintf('closure{%s:%s}', $r->getFileName(), $r->getStartLine());
                             } elseif ($class = $r->getClosureScopeClass()) {
-                                $callableDescription = $class->name.'::'.$r->name;
+                                $callableDescription = $class->name . '::' . $r->name;
                             } else {
                                 $callableDescription = $r->name;
                             }
@@ -5960,15 +6002,15 @@ EOL;
     private function tryImportPathWithExtensions($path)
     {
         $result = array_merge(
-            $this->tryImportPath($path.'.sass'),
-            $this->tryImportPath($path.'.scss')
+            $this->tryImportPath($path . '.sass'),
+            $this->tryImportPath($path . '.scss')
         );
 
         if ($result) {
             return $result;
         }
 
-        return $this->tryImportPath($path.'.css');
+        return $this->tryImportPath($path . '.css');
     }
 
     /**
@@ -5978,7 +6020,7 @@ EOL;
      */
     private function tryImportPath($path)
     {
-        $partial = dirname($path).'/_'.basename($path);
+        $partial = dirname($path) . '/_' . basename($path);
 
         $candidates = [];
 
@@ -6004,7 +6046,7 @@ EOL;
             return null;
         }
 
-        return $this->checkImportPathConflicts($this->tryImportPathWithExtensions($path.'/index'));
+        return $this->checkImportPathConflicts($this->tryImportPathWithExtensions($path . '/index'));
     }
 
     /**
@@ -6019,7 +6061,7 @@ EOL;
         }
 
         $normalizedPath = $path;
-        $normalizedRootDirectory = $this->rootDirectory.'/';
+        $normalizedRootDirectory = $this->rootDirectory . '/';
 
         if (\DIRECTORY_SEPARATOR === '\\') {
             $normalizedRootDirectory = str_replace('\\', '/', $normalizedRootDirectory);
@@ -6406,8 +6448,6 @@ EOL;
      */
     protected function sortNativeFunctionArgs($functionName, $prototypes, $args)
     {
-        static $parser = null;
-
         if (! isset($prototypes)) {
             $keyArgs = [];
             $posArgs = [];
@@ -6561,7 +6601,7 @@ EOL;
      *
      * @return array
      *
-     * @phpstan-param non-empty-list<array{arguments: list<array{0: string, 1: string, 2: array|Number|null}>, rest_argument: string|null}> $prototypes
+     * @phpstan-param non-empty-array<array{arguments: list<array{0: string, 1: string, 2: array|Number|null}>, rest_argument: string|null}> $prototypes
      * @phpstan-return array{arguments: list<array{0: string, 1: string, 2: array|Number|null}>, rest_argument: string|null}
      */
     private function selectFunctionPrototype(array $prototypes, $positional, array $names)
@@ -7714,9 +7754,9 @@ EOL;
         $b = min(1.0 - $w, $b);
 
         $rgb = $this->toRGB($hue, 100, 50);
-        for($i = 1; $i < 4; $i++) {
-          $rgb[$i] *= (1.0 - $w - $b);
-          $rgb[$i] = round($rgb[$i] + 255 * $w + 0.0001);
+        for ($i = 1; $i < 4; $i++) {
+            $rgb[$i] *= (1.0 - $w - $b);
+            $rgb[$i] = round($rgb[$i] + 255 * $w + 0.0001);
         }
 
         return $rgb;
@@ -7743,7 +7783,6 @@ EOL;
         if ((int) $d === 0) {
             $h = 0;
         } else {
-
             if ($red == $max) {
                 $h = 60 * ($green - $blue) / $d;
             } elseif ($green == $max) {
@@ -7753,7 +7792,7 @@ EOL;
             }
         }
 
-        return [Type::T_HWB, fmod($h, 360), $min / 255 * 100, 100 - $max / 255 *100];
+        return [Type::T_HWB, fmod($h, 360), $min / 255 * 100, 100 - $max / 255 * 100];
     }
 
 
@@ -7962,7 +8001,13 @@ EOL;
         $scale = $operation === 'scale';
         $change = $operation === 'change';
 
-        /** @phpstan-var callable(string, float|int, bool=, bool=): (float|int|null) $getParam */
+        /**
+         * @param string $name
+         * @param float|int $max
+         * @param bool $checkPercent
+         * @param bool $assertPercent
+         * @return float|int|null
+         */
         $getParam = function ($name, $max, $checkPercent = false, $assertPercent = false) use (&$kwargs, $scale, $change) {
             if (!isset($kwargs[$name])) {
                 return null;
@@ -8104,7 +8149,7 @@ EOL;
     protected static $libChangeColor = ['color', 'kwargs...'];
     protected function libChangeColor($args)
     {
-        return $this->alterColor($args,'change', function ($base, $alter, $max) {
+        return $this->alterColor($args, 'change', function ($base, $alter, $max) {
             if ($alter === null) {
                 return $base;
             }
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Formatter.php b/include/thirdparty/ScssPhp/ScssPhp/Formatter.php
index 6137dc6..c477e6f 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Formatter.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Formatter.php
@@ -272,7 +272,7 @@ abstract class Formatter
      *
      * @return string
      */
-    public function format(OutputBlock $block, SourceMapGenerator $sourceMapGenerator = null)
+    public function format(OutputBlock $block, ?SourceMapGenerator $sourceMapGenerator = null)
     {
         $this->sourceMapGenerator = null;
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php b/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php
index 48e711f..a38ba5f 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Node/Number.php
@@ -33,7 +33,7 @@ use ScssPhp\ScssPhp\Util;
  *
  * @template-implements \ArrayAccess<int, mixed>
  */
-class Number extends Node implements \ArrayAccess
+class Number extends Node implements \ArrayAccess, \JsonSerializable
 {
     const PRECISION = 10;
 
@@ -131,7 +131,7 @@ class Number extends Node implements \ArrayAccess
     }
 
     /**
-     * @return string[]
+     * @return list<string>
      */
     public function getNumeratorUnits()
     {
@@ -139,13 +139,23 @@ class Number extends Node implements \ArrayAccess
     }
 
     /**
-     * @return string[]
+     * @return list<string>
      */
     public function getDenominatorUnits()
     {
         return $this->denominatorUnits;
     }
 
+    /**
+     * @return mixed
+     */
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        // Passing a compiler instance makes the method output a Sass representation instead of a CSS one, supporting full units.
+        return $this->output(new Compiler());
+    }
+
     /**
      * @return bool
      */
@@ -554,7 +564,7 @@ class Number extends Node implements \ArrayAccess
 
         try {
             return $this->coerceUnits($other, function ($num1, $num2) {
-                return round($num1,self::PRECISION) == round($num2, self::PRECISION);
+                return round($num1, self::PRECISION) == round($num2, self::PRECISION);
             });
         } catch (SassScriptException $e) {
             return false;
@@ -568,7 +578,7 @@ class Number extends Node implements \ArrayAccess
      *
      * @return string
      */
-    public function output(Compiler $compiler = null)
+    public function output(?Compiler $compiler = null)
     {
         $dimension = round($this->dimension, self::PRECISION);
 
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Parser.php b/include/thirdparty/ScssPhp/ScssPhp/Parser.php
index 0debcc8..674a080 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Parser.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Parser.php
@@ -140,7 +140,7 @@ class Parser
      * @param bool                 $cssOnly
      * @param LoggerInterface|null $logger
      */
-    public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8', Cache $cache = null, $cssOnly = false, LoggerInterface $logger = null)
+    public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8', ?Cache $cache = null, $cssOnly = false, ?LoggerInterface $logger = null)
     {
         $this->sourceName       = $sourceName ?: '(stdin)';
         $this->sourceIndex      = $sourceIndex;
@@ -310,8 +310,9 @@ class Parser
      *
      * @api
      *
-     * @param string       $buffer
-     * @param string|array $out
+     * @param string $buffer
+     * @param mixed  $out
+     * @param-out array|Number $out
      *
      * @return bool
      */
@@ -345,9 +346,9 @@ class Parser
      *
      * @api
      *
-     * @param string       $buffer
-     * @param string|array $out
-     * @param bool         $shouldValidate
+     * @param string $buffer
+     * @param array  $out
+     * @param bool   $shouldValidate
      *
      * @return bool
      */
@@ -395,10 +396,13 @@ class Parser
         $this->inParens        = false;
         $this->eatWhiteDefault = true;
         $this->buffer          = (string) $buffer;
+        $this->discardComments = true;
 
         $this->saveEncoding();
         $this->extractLineNumbers($this->buffer);
 
+        $this->whitespace();
+
         $isMediaQuery = $this->mediaQueryList($out);
 
         $this->restoreEncoding();
@@ -1252,10 +1256,10 @@ class Parser
     /**
      * Assert a parsed part is plain CSS Valid
      *
-     * @param array|false $parsed
+     * @param array|Number|false $parsed
      * @param int         $startPos
      *
-     * @return array
+     * @return array|Number
      *
      * @throws ParserException
      */
@@ -1285,10 +1289,10 @@ class Parser
     /**
      * Check a parsed element is plain CSS Valid
      *
-     * @param array $parsed
+     * @param array|Number|string $parsed
      * @param bool  $allowExpression
      *
-     * @return array|false
+     * @return ($parsed is string ? string : ($parsed is Number ? Number : array|false))
      */
     protected function isPlainCssValidElement($parsed, $allowExpression = false)
     {
@@ -1297,6 +1301,10 @@ class Parser
             return $parsed;
         }
 
+        if ($parsed instanceof Number) {
+            return $parsed;
+        }
+
         if (
             \in_array($parsed[0], [Type::T_FUNCTION, Type::T_FUNCTION_CALL]) &&
             !\in_array($parsed[1], [
@@ -2091,8 +2099,9 @@ class Parser
     /**
      * Parse directive value list that considers $vars as keyword
      *
-     * @param array        $out
+     * @param mixed        $out
      * @param string|false $endChar
+     * @param-out array|Number $out
      *
      * @return bool
      *
@@ -2155,7 +2164,8 @@ class Parser
     /**
      * Parse comma separated value list
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array|Number $out
      *
      * @return bool
      */
@@ -2173,10 +2183,11 @@ class Parser
      * Parse a function call, where externals () are part of the call
      * and not of the value list
      *
-     * @param array       $out
+     * @param mixed       $out
      * @param bool        $mandatoryEnclos
      * @param null|string $charAfter
      * @param null|bool   $eatWhiteSp
+     * @param-out array|Number $out
      *
      * @return bool
      */
@@ -2212,7 +2223,8 @@ class Parser
     /**
      * Parse space separated value list
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array|Number $out
      *
      * @return bool
      */
@@ -2224,10 +2236,11 @@ class Parser
     /**
      * Parse generic list
      *
-     * @param array  $out
+     * @param mixed  $out
      * @param string $parseItem The name of the method used to parse items
      * @param string $delim
      * @param bool   $flatten
+     * @param-out ($flatten is false ? array : array|Number) $out
      *
      * @return bool
      */
@@ -2331,9 +2344,10 @@ class Parser
     /**
      * Parse expression
      *
-     * @param array $out
+     * @param mixed $out
      * @param bool  $listOnly
      * @param bool  $lookForExp
+     * @param-out array|Number $out
      *
      * @return bool
      *
@@ -2398,10 +2412,11 @@ class Parser
     /**
      * Parse expression specifically checking for lists in parenthesis or brackets
      *
-     * @param array    $out
+     * @param mixed    $out
      * @param int      $s
      * @param string   $closingParen
      * @param string[] $allowedTypes
+     * @param-out array|Number $out
      *
      * @return bool
      *
@@ -2460,10 +2475,10 @@ class Parser
     /**
      * Parse left-hand side of subexpression
      *
-     * @param array $lhs
-     * @param int   $minP
+     * @param array|Number $lhs
+     * @param int          $minP
      *
-     * @return array
+     * @return array|Number
      */
     protected function expHelper($lhs, $minP)
     {
@@ -2514,7 +2529,8 @@ class Parser
     /**
      * Parse value
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array|Number $out
      *
      * @return bool
      */
@@ -2722,7 +2738,8 @@ class Parser
     /**
      * Parse parenthesized value
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array|Number $out
      *
      * @return bool
      */
@@ -2794,7 +2811,8 @@ class Parser
      * Parse function call
      *
      * @param string $name
-     * @param array  $func
+     * @param mixed  $func
+     * @param-out array $func
      *
      * @return bool
      */
@@ -2897,7 +2915,8 @@ class Parser
     /**
      * Parse mixin/function definition  argument list
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out list<array{string, array|Number|null, bool}> $out
      *
      * @return bool
      */
@@ -2959,7 +2978,8 @@ class Parser
     /**
      * Parse map
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array $out
      *
      * @return bool
      */
@@ -3001,7 +3021,8 @@ class Parser
     /**
      * Parse color
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array $out
      *
      * @return bool
      */
@@ -3027,7 +3048,8 @@ class Parser
     /**
      * Parse number with unit
      *
-     * @param array $unit
+     * @param mixed $unit
+     * @param-out Number $unit
      *
      * @return bool
      */
@@ -3233,11 +3255,12 @@ class Parser
      * Parse an unbounded string stopped by $end
      *
      * @param string $end
-     * @param array  $out
+     * @param mixed  $out
      * @param string $nestOpen
      * @param string $nestClose
      * @param bool   $rtrim
      * @param string $disallow
+     * @param-out array $out
      *
      * @return bool
      */
@@ -3314,8 +3337,9 @@ class Parser
     /**
      * Parser interpolation
      *
-     * @param string|array $out
-     * @param bool         $lookWhite save information about whitespace before and after
+     * @param mixed $out
+     * @param bool  $lookWhite save information about whitespace before and after
+     * @param-out array $out
      *
      * @return bool
      */
@@ -3849,7 +3873,8 @@ class Parser
     /**
      * Parse a variable
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array{Type::*, string} $out
      *
      * @return bool
      */
@@ -3878,9 +3903,10 @@ class Parser
     /**
      * Parse a keyword
      *
-     * @param string $word
-     * @param bool   $eatWhitespace
-     * @param bool   $inSelector
+     * @param mixed $word
+     * @param bool  $eatWhitespace
+     * @param bool  $inSelector
+     * @param-out string $word
      *
      * @return bool
      */
@@ -3996,7 +4022,8 @@ class Parser
     /**
      * Parse a url
      *
-     * @param array $out
+     * @param mixed $out
+     * @param-out array $out
      *
      * @return bool
      */
@@ -4006,10 +4033,10 @@ class Parser
             $s = $this->count;
 
             if (
-                ($this->string($out) || $this->spaceList($out)) &&
+                ($this->string($inner) || $this->spaceList($inner)) &&
                 $this->matchChar(')')
             ) {
-                $out = [Type::T_STRING, '', ['url(', $out, ')']];
+                $out = [Type::T_STRING, '', ['url(', $inner, ')']];
 
                 return true;
             }
@@ -4052,7 +4079,7 @@ class Parser
     /**
      * Strip assignment flag from the list
      *
-     * @param array $value
+     * @param array|Number $value
      *
      * @return string[]
      */
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Type.php b/include/thirdparty/ScssPhp/ScssPhp/Type.php
index d430887..2f8ab65 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Type.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Type.php
@@ -95,6 +95,9 @@ class Type
      * @internal
      */
     const T_FOR = 'for';
+    /**
+     * @internal
+     */
     const T_FUNCTION = 'function';
     /**
      * @internal
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Version.php b/include/thirdparty/ScssPhp/ScssPhp/Version.php
index 17394ce..45fc983 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Version.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Version.php
@@ -19,5 +19,5 @@ namespace ScssPhp\ScssPhp;
  */
 class Version
 {
-    const VERSION = '1.12.0';
+    const VERSION = '1.13.0';
 }
diff --git a/include/thirdparty/ScssPhp/ScssPhp/Warn.php b/include/thirdparty/ScssPhp/ScssPhp/Warn.php
index 592b44c..7ad0615 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/Warn.php
+++ b/include/thirdparty/ScssPhp/ScssPhp/Warn.php
@@ -59,7 +59,7 @@ final class Warn
      *
      * @internal
      */
-    public static function setCallback(callable $callback = null)
+    public static function setCallback(?callable $callback = null)
     {
         $previousCallback = self::$callback;
         self::$callback = $callback;
diff --git a/include/thirdparty/ScssPhp/ScssPhp/bin/LICENSE.md b/include/thirdparty/ScssPhp/ScssPhp/bin/LICENSE.md
deleted file mode 100644
index afcfdfb..0000000
--- a/include/thirdparty/ScssPhp/ScssPhp/bin/LICENSE.md
+++ /dev/null
@@ -1,20 +0,0 @@
-Copyright (c) 2015 Leaf Corcoran, http://scssphp.github.io/scssphp
- 
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
- 
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
- 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/include/thirdparty/ScssPhp/ScssPhp/bin/README.md b/include/thirdparty/ScssPhp/ScssPhp/bin/README.md
deleted file mode 100644
index 65bb93e..0000000
--- a/include/thirdparty/ScssPhp/ScssPhp/bin/README.md
+++ /dev/null
@@ -1,71 +0,0 @@
-# scssphp
-### <https://scssphp.github.io/scssphp>
-
-![Build](https://github.com/scssphp/scssphp/workflows/CI/badge.svg)
-[![License](https://poser.pugx.org/scssphp/scssphp/license)](https://packagist.org/packages/scssphp/scssphp)
-
-`scssphp` is a compiler for SCSS written in PHP.
-
-Checkout the homepage, <https://scssphp.github.io/scssphp>, for directions on how to use.
-
-## Running Tests
-
-`scssphp` uses [PHPUnit](https://github.com/sebastianbergmann/phpunit) for testing.
-
-Run the following command from the root directory to run every test:
-
-    vendor/bin/phpunit tests
-
-There are several tests in the `tests/` directory:
-
-* `ApiTest.php` contains various unit tests that test the PHP interface.
-* `ExceptionTest.php` contains unit tests that test for exceptions thrown by the parser and compiler.
-* `FailingTest.php` contains tests reported in Github issues that demonstrate compatibility bugs.
-* `InputTest.php` compiles every `.scss` file in the `tests/inputs` directory
-  then compares to the respective `.css` file in the `tests/outputs` directory.
-* `SassSpecTest.php` extracts tests from the `sass/sass-spec` repository.
-
-When changing any of the tests in `tests/inputs`, the tests will most likely
-fail because the output has changed. Once you verify that the output is correct
-you can run the following command to rebuild all the tests:
-
-    BUILD=1 vendor/bin/phpunit tests
-
-This will compile all the tests, and save results into `tests/outputs`. It also
-updates the list of excluded specs from sass-spec.
-
-To enable the full `sass-spec` compatibility tests:
-
-    TEST_SASS_SPEC=1 vendor/bin/phpunit tests
-
-## Coding Standard
-
-`scssphp` source conforms to [PSR12](https://www.php-fig.org/psr/psr-12/).
-
-Run the following command from the root directory to check the code for "sniffs".
-
-    vendor/bin/phpcs --standard=PSR12 --extensions=php bin src tests *.php
-
-## Static Analysis
-
-`scssphp` uses [phpstan](https://phpstan.org/) for static analysis.
-
-Run the following command from the root directory to analyse the codebase:
-
-    make phpstan
-
-As most of the codebase is composed of legacy code which cannot be type-checked
-fully, the setup contains a baseline file with all errors we want to ignore. In
-particular, we ignore all errors related to not specifying the types inside arrays
-when these arrays correspond to the representation of Sass values and Sass AST nodes
-in the parser and compiler.
-When contributing, the proper process to deal with static analysis is the following:
-
-1. Make your change in the codebase
-2. Run `make phpstan`
-3. Fix errors reported by phpstan when possible
-4. Repeat step 2 and 3 until nothing gets fixed anymore at step 3
-5. Run `make phpstan-baseline` to regenerate the phpstan baseline
-
-Additions to the baseline will be reviewed to avoid ignoring errors that should have
-been fixed.
diff --git a/include/thirdparty/ScssPhp/ScssPhp/bin/composer.json b/include/thirdparty/ScssPhp/ScssPhp/bin/composer.json
index f81203d..d17ffb9 100644
--- a/include/thirdparty/ScssPhp/ScssPhp/bin/composer.json
+++ b/include/thirdparty/ScssPhp/ScssPhp/bin/composer.json
@@ -43,7 +43,7 @@
         "thoughtbot/bourbon": "^7.0",
         "twbs/bootstrap": "~5.0",
         "twbs/bootstrap4": "4.6.1",
-        "zurb/foundation": "~6.5"
+        "zurb/foundation": "~6.7.0"
     },
     "repositories": [
         {
diff --git a/include/thirdparty/elFinder/php/elFinder.class.php b/include/thirdparty/elFinder/php/elFinder.class.php
index ff7d1ac..96c29c7 100644
--- a/include/thirdparty/elFinder/php/elFinder.class.php
+++ b/include/thirdparty/elFinder/php/elFinder.class.php
@@ -606,7 +606,7 @@ class elFinder
         $this->version = (string)self::$ApiVersion;
 
         // set error handler of WARNING, NOTICE
-        $errLevel = E_WARNING | E_NOTICE | E_USER_WARNING | E_USER_NOTICE | E_STRICT | E_RECOVERABLE_ERROR;
+        $errLevel = E_WARNING | E_NOTICE | E_USER_WARNING | E_USER_NOTICE | E_RECOVERABLE_ERROR;
         if (defined('E_DEPRECATED')) {
             $errLevel |= E_DEPRECATED | E_USER_DEPRECATED;
         }