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For this assignment, I used Photoshop. First, I had to make the circle with the ellipse tool, and I had to apply certain filter (blur, radial) and gradient effects to it. Then I downloaded the power button symbol and applied layer blending options to it, and changed the color to green. Then, I added the animation filter, duplicated the layers, ending up with 14. Then, I changed the animation play time to immediate, and played it. The result is in the gif above.