What can you build on the Issuu platform?
As of now, you can customise the online publication viewer to include your company logo, change the background, modify the buttons, and do pretty much anything to the UI — in other words, infuse it with your own branding. The viewer has already been available, since its very first release, in four different themes: Grey, Grass, White, and Wood. Now you can create your own themes, using a combination of XML and either Adobe Flash or any standard image editor like Adobe Photoshop or GIMP.
Moving forward, Issuu will be releasing new UI components and data APIs through the new Issuu Platform & Services site.