Change editor-key-invalid color to a lighter shade

Author: JerryI

Assets/Styles/Custom.css

@@ -56,7 +56,7 @@
     --editor-special-variable: #256;
     --editor-key-property: #00c;
     --editor-key-comment: #940;
-    --editor-key-invalid: #f00;
+    --editor-key-invalid: #ff8686;
 
     --editor-outline: #696969;