Hey Dick,

Whilst developing you should use '$ grunt dev' as it gives you source mapping. In a future release it will also run '$ grunt watch' directly after building. So any changes will run a 'grunt dev' and compile with source mapping. Source mapping it's easier to debug your JS code.

I've had a look over your files and the url to the images you've put in the components.json seem to cause a 404 error. I would suggest removing the '/' from the beginning of the url. If this doesn't work then extend your url to be an absolute path. This might be a problem with Dropbox.

Thanks,

Daryl