How to Invert Colors on an IPhone 4s (updated for Ios 7 and Up)

Materials:
An iPhone
A finger

Step 1: Settings

Tap the settings icon and go to General. I give credit to doodle buddy for the arrows.

Step 2: Getting There

Now scroll down and tap Accessibility.

Step 3: Yay

Now tap the move the slider that says Invert Colors.

Step 4: Or...

Instead of permanatly inverting colors, you can set triple click home to invert colors so every time you triple click the home button, you can toggle invert colors. Enjoy!