1. When something is Yellow & You click 'Difference' 

- it turns Blue :) 

2. When something is Pink & You click 'Difference'

- it turns Green :)

3. When Something is Light Blue & you click 'Difference'

- it turns Brown! :D

( it was the funniest with turkey clipart - when I clicked 'DIfference' on it - it looked as if it was Roast! 😆😆😆 )