All of the below would be available to the public...
User experience (UX) is one of the most important aspects of this
initiative — it’s practically in the name: “Lightning Experience”.
Accordingly, we want to help our partners evolve their applications to
this new era of UX.
So what does this mean for your existing app? Many apps feature
customizations, including custom objects, custom buttons, Visualforce
pages. In preparation for the Lightning Experience release, all
partners should test their apps to ensure functionality continues
working properly in the new experience. Partners can also get their
apps designated as “Lightning Ready”. Apps that are Lightning Ready
will work in Lightning Experience and offer a more consistent
experience with other Lightning pages. If your app uses standard
Salesforce UI, objects, page layouts, but no custom Visualforce pages,
then you should expect them to display properly in the new Lightning
Experience with the new look and feel. In general, Visualforce pages
will work in the new UI, but they should be tested to ensure all
features are properly supported and functioning correctly.
To earn the Lightning Ready certification, Visualforce pages in apps
should be updated to offer a more consistent user experience with
Lightning. To assist in this effort, we are publishing the Lightning
Design System, which is formal documentation around all the styles
that make up the Lightning Experience across all form factors. The
Lightning Design System is available to all, and will be made GA
through an open-source project on GitHub for Dreamforce. It can be
used to design apps built on the Salesforce Platform as well as on
other platforms. https://www.lightningdesignsystem.com/
To help customers easily identify apps that work in the new
experience, we are introducing a new “Lightning Ready” sash for apps.
This sash will indicate what apps have been certified as “Lightning
Ready” and therefore will work in the new Lightning Experience and
offer a consistent user experience. If an app isn’t yet supported in
Lightning Experience, customers can use it in Salesforce Classic
You can find detailed instructions on getting Lightning Ready available at p.force.com/lightningready