VSCalm extension by Jeremy Iverson restores standard tool window titles format in VS 11 Beta IDE. It changes the ALL CAPS letters to normal title case and removes :::colon-like::: gripper bars:
Remove “ALL CAPS” is the #2 request for Visual Studio IDE on the UserVoice Visual Studio forum (#1 is the “Add some color to Visual Studio 11 Beta”). Most probably Visual Studio 11 RC will fix this problem, but for now you can use VSCalm. Installation of VSCalm adds the Calm command to the Visual Studio Tools menu:
To modify titles you need to execute this command each time you start Visual Studio. I think it will be more convenient to apply title modifications automatically on Visual Studio startup without any additional commands.