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Step 1: Choose a light colour
white
red
green
blue
cyan
magenta
yellow
Step 2: Choose a filter colour
clear
red
green
blue
cyan
magenta
yellow
Step 3: Choose a paper colour
white
red
green
blue
cyan
magenta
yellow
black
Step 4: Make a prediction
white
red
green
blue
cyan
magenta
yellow
black
Test your understanding of basic colour theory