B12 Mobile theme customization

We've been exploring options for mobile users to quickly customize their A.I.-drafted websites. My goal here was to offer a 1-tap way for mobile users to change cover images, fonts, and colors of their websites.

With limited real estate on mobile, I explored a collapsible UI pane that would sit on top of the website. The idea is that the pane on the lower half of the screen could be collapsed and expanded (by tapping on the disclosure icon) in order for users to preview the visual changes to their website in the background.