Use Chroma Key to add special effects, and make your videos stand out. Click the overlay icon and tap the ‘camera’ to import your clip. Import your green-screen footage by dragging it to the timeline. You can also resize, reposition and rotate the Chroma Key video. To remove the background, tap ‘Edit’ and select ‘Chroma Key’. Select the ‘Color Picker’ to remove a certain color. Move the ‘Range’ slider to adjust how much color is removed. Use the ‘Denoise’ slider to remove any noise from the clip. Click the ‘Play’ icon to preview the video.