When you hold the clippers at the top of the game, a piece of each plant blinks. I don't understand what this is trying to show? It doesn't just blink for brown parts, is it trying to show which pieces to take off to improve the plant? It seems like it always makes a piece I wouldn't really want to remove blink instead of a part I would be willing to cut, such at the top part on the maples!

I feel like I'm missing something important!
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XP Home/Intel Core 2 Duo @ 3GHz/2064MB RAM/DirectX 9.0c/768 VRAM
1680x1050 32bit 60Hz