System UI Tuner
We're also excited about a small feature that's called System UI Tuner. It doesn't have a flashy name like Doze but it comes with a ton of purpose.
If you're like us, you are constantly in your Quick Settings menu. It's one of Android's best features and something that we use on the Nexus 5 just about every time we use it. Quick Settings is getting even better in Android M thanks to System UI Tuner.
The feature allows you to quickly customize your Quick Settings. This is absolutely huge. You can drag icons around, add brand new tiles or even delete settings that you don't want listed there. It's a feature that we had hoped would arrive in Android M and Google delivered. We're extremely excited.