Press the microphone icon and say one of the commands specified and see your settings changed.
You can even create a widget and place it on your home screen. Press the widget and it will immediately start listening to you.
Currently the settings supported are:
- less brightness
- more brightness
- screen rotation
Please drop your suggestions and let me know if you want any more settings changed. Or if you just want to drop me a friendly hello, or if you want to work on a project or need my source code, contact me via the feedback option.