My understanding about of licensing of the stuff we sell over here is that a standard codecanyon license is applied “by default” to anything sold in the marketplace. Is there anything else a developer should add to the source files? Any good practice that one should stick to?
I always add a link to the license page on my scripts so that people know that there is a license to abide by… also add a link to the item page so that if anyone else if looking at your item, they know where it is from…
Envato could include automatically a license file in the zip (regualar or extended, depending on the bought license).