Hi Scott,

Thank you for your complet answer. 

Indeed, since few days of search and forum posting and others youtube viewing the difference between Adapt Builder and Adapt Authoring tool is more clear for me ! 

Also I had some contact with the learning pool team, as Damian Doherty.

In fact, I wear since last week my new boot of web designers, and I beginto customized "Bg images" theme, color or background with "Sublime text". It s not vanilla theme, but I don't think it s a problem. 

The Adapt Community is very helpful ! :-)

Best regards,

Chris