I anticipate there will be a lot of posts about the changes to Materials in 2013, on such topics as:
- Why did this happen?
- “I am angry about Materials 2013 for xyz reason”
- How do I use this?
- Will this change again next year?
- Just, Why?
In any case, if you are looking for the Identity tab for Materials in Revit 2013, look for the arrow.