Thank you for the comment, I appreciate it! I'm glad to receive such insightful input on something I made!
As for level 7, the goal is to line up the frogs in order to open the red button doors, and to keep the yellow spikes down. After you line up the frogs for the red buttons, you'd trap them in the left half of their room with dark mode. In the left half of the room, the yellow buttons are arranged in a way that if the frogs are lined up, at least one frog will be standing on a button at all times, allowing you to cross the yellow spikes.