1. After taking a photo, click the pencil icon on the lower right corner of the screen
2. Make edits to the photo with the various photo editing tools (Adjustment, Crop, Draw, Rotate, etc.) Swipe left on the tool bar at the bottom for more editing tools.
3. To brighten a photo, click on Adjustment. Slide the brightening tool on the right side to adjust the photo. After making the desired changes click "Done"