What is the Theme?: Red

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Across
  1. 2. Gemstone associated with July
  2. 6. Autumn leaf shade before falling
  3. 7. Popular fruit often paired with green in a holiday color scheme
  4. 9. Sauce base for pizza and pasta
Down
  1. 1. Crustacean that turns bright after boiling
  2. 3. Stop sign’s color twin in the produce aisle
  3. 4. Valentine’s Day bloom
  4. 5. Berry that is often in a short cake
  5. 6. Spicy pepper often found in salsa
  6. 8. Fireman's method of transportation