What is the "Photoshop" option in the Developer version?

What is the “Photoshop” option in the Developer version?
Does that mean you get the Photoshop files for the Premium Modules & Layouts?

Hi There!

Thanks for contacting us and for your interest in our product! The Photoshop files zip that comes with the Developer version includes layered PSD files for each of our layouts whether they be the homepage layouts (12) or content layouts (12). In addition, the PSDs for each of the main template skins (10). Please let us know if you have any further questions and thanks again!

Best,
Billy