**Important Notes:** 1. The subject's background should be a solid color that contrasts significantly with the subject. 2. Avoid casting shadows on the background. 3. Ensure adequate lighting on both the subject and the background. 4. You can remove or adjust up to 10 colors or chroma keys using the chroma key slider. 5. Adjust the Tolerance, Precision, Brightness, Contrast, and Saturation sliders to achieve the desired effects for the front or back layers. 6. Compatible with rear and front cameras. 7. This app was designed to help people learn and have fun experimenting with green screens. **Permissions Needed:** 1. **Pictures and Videos**: This permission is required for the app to use the phone’s camera to capture videos.