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NGUI Options Menu is one part example project and one part template. It is a complete configuration solution for Unity based off of NGUI. Put simply it offers an example NGUI framework that uses several new scripts to control a variety of in-game settings such as video resolution, quality level, vertical sync, and volume.
It's an essential starter options menu built off of NGUI built because I was tired of implementing the same menu functionality across all of my projects.

FEATURES
- Change resolution ingame.
- Change quality settings ingame.
- Modify vertical sync.
- Easily switch between fullscreen and windowed mode.
- Automatic framerate capping.
- Functional extensible volume controls.
- Able to control music with a separate volume slider.
NOTE: NGUI Options Menu requires NGUI 3.0+!

LEGAL NOTE:
I am in no way affiliated with Tasharen Entertainment or NGUI.