Overlay
There is an integrated overlay for use in games. The overlay shows who is talking and what linked channel they are in. As of version 1.0, users could upload avatars to represent themselves in the overlay, creating a more personalized experience. As of version 1.2, the overlay works with most Direct3D 9/10 and OpenGL games on Windows and has OpenGL support for Linux and Mac OS X. DirectX 11 game support is planned,.
Read more about this topic: Mumble (software)