Setup/img-maps

* script cleanup
 * fixed subzone generation and made color less garish
 * fixed alphamap generation and alphamapcheck not pointing to the same path
 * fixed padding UtilityScript args with unexpected var types

setup/tools/CLISetup.class.php

@@ -341,7 +341,7 @@ class CLISetup
                 return false;
         }
 
-        $args = array_pad($args, 4, []);
+        $args = array_pad($args, 4, null);
 
         $success = $us->run($args);