Windows built in Command Prompt is ugly and dated. It also lacks proper Git integration. Git for Windows comes with a configured Git Bash you can use instead. Combine that with Mintty and you now have a full featured themeable terminal rivaling the built in Mac OS Terminal.
In the Git for Windows installer choose Use MinTTY when asked to configure the default emulator. This will allow you to apply a custom theme. In addition:
Mintty has much better support for non-english characters (UTF-8)
Git branch name in the terminal prompt after teh current path