BUGFIX: Fix bugs in composer json and and an undefined variable detected by phpstan

Author: mficzel

Classes/Eel/ColorBuilder.php

@@ -61,7 +61,7 @@ public function hex(string $hex): ?ColorHelper
             return new ColorHelper(
                 new RgbaColor($red, $green, $blue, $alpha)
             );
-        } elseif (preg_match(self::PATTERN_HEX_LONG, $colorString, $matches)) {
+        } elseif (preg_match(self::PATTERN_HEX_LONG, $hex, $matches)) {
             $red = hexdec($matches['red']);
             $green = hexdec($matches['green']);
             $blue = hexdec($matches['blue']);

composer.json

@@ -30,7 +30,7 @@
             "Build/Travis/bin/phpunit --verbose -c Build/Travis/unit-tests.xml"
         ],
         "test": [
-            "composer test:unit",
+            "composer test:unit"
         ]
     }
 }