IntelliJ 13: How do I restore the tool window menu bars?

Question

I upgraded to IntelliJ 13 from 12 recently. The tool window menu bars have disappeared.

How can I restore them? They are useful, because they serve as a reminder about the shortcut keys for each, e.g., 1-Project -> Alt+1, 6-TODO -> Alt+6, etc.

Here is a screenshot from IntelliJ 12:

Answer 1

At the bottom left, click the rectangle to make those visible. See the image: