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Homework #4 - User Input with Keyboard & Mouse

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Mix colors! 1. Press "r" to make red. If you pressed "r" then press "b" to make purple 2. Press the space bar to clear the canvas 3. Press "r" to make red. If you pressed "r" then press "y" to make orange 4. Press the space bar to clear the canvas 5. Press "Y" (capital "y") to make yellow. If you pressed "Y" then press "B" (capital "b") to make green 6. Press the space bar to clear the canvas 7. Click and hold the mouse button to create a rainbow of randomly located, colored circles
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