We just released version 1.0.5.2 of the Knapstack Theme which has some cool upgrades.

Header Upgrades:
You can now have a transparent background behind your header, set it to either scroll or stick to the top of the screen.

Footer Upgrades:
Footers have been upgraded to have their own stack! Now, all the power and control from MP Stacks can be used for the footer of your theme – using a single footer stack on every page. To use it, go to “Appearance” > “Customizer” and select the stack you wish to use for your footer.

= 1.0.5.2 = March 5, 2014
* Footer widgets are replaced with a Stack.
* Header can either be fixed or scroll
* Header background opacity option added