Question about layered PSD

Hi, this is a question for themeforest authors:

You always include the layered PSD design with your items for sale? Is it a mandatory requirement for a theme to be approved?

As long as you’re not posting item into PSD category it is not required- you can design you template in paint or anything you want, even create it on the fly, any basic source is optional, but helpful for end customer.

not mandatory