In the Site Admin, the ‘Themes’ tab located under ‘Design’ contains the site’s theme HTML (otherwise known as “skins” or templates).
Here's a great starting point to develop common list section skins.
Usually, you will want to make changes to the presentation or formatting of your site (or individual elements therein) without altering the overall layout (HTML) of it.
Controls, in Pixelsilk, are essentially dynamic blocks of content that can be inserted anywhere in a theme page, skin, and/or content.
‘Page Types’ in Pixelsilk are, in essence, types of data or content that can be displayed.
Want to know 10 easy steps to getting your site into Pixelsilk?
Tips and tricks to themeing a simple menu.