crossword for the colourblind

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Across
  1. 4. the alphabet is colourblind
  2. 5. santas hat is what colour?
  3. 7. trees are what colour?
Down
  1. 1. they can see in now
  2. 2. is short and colourblind
  3. 3. there really is no colour
  4. 6. what cable can't colourblind see?