Added ability to turn on 'THEME MODE', to set correct URLs for assets.

[jezzdk]

I noticed an error in my console, because the default URL for css and js is the plugin URI.

[louy]

You could simply add this line to your functions.php and the issue is solved. That's the idea behind the constant SCPT_PLUGIN_URL actually.

define( 'SCPT_PLUGIN_URL', get_template_directory_uri() . '/super-cpt/' );