The Style Effect feature is used to create a style effect in the video. If you want to add this effect, then you have to tap on the style effect icon from the editing page. After tapping on it, you will see that the app has opened a new page where you can choose any of your favorite effects from over 100 unique templates, including Film 3D, Parallax, and Magic FX. After selecting the effect, tap on the "Apply" button. The selected effect will be applied to your video.