Where can I find the graffiti function of Apple's mobile phone?

Tools/materials: Apple 6S mobile phone.

1. First, find the photo icon on the desktop of our mobile phone and click it.

2. Then click on a picture.

3. Then click Edit in the upper right corner of the screen.

4. Then click on the three points in the lower right corner of the screen.

5. Then click the sign at the bottom left of the screen.

6. Finally, draw the shape we want on the picture and click Finish in the upper right corner of the screen.