The app also has a light theme. Just simply add your audio files to the task list by clicking the "Add Audio Files..." button or dragging and drop them to the window, click the "Start" button and wait ...
All a kid wants (and needs!) are headphones. Give a tween a pair of Apple Airpods 4, and you will be their favorite person until at least high school. (They're also a favorite of the adults over here ...