Self-assembled, disordered structural color from fruit wax bloom

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I had always wondered why blueberries are no longer blue when smooshed. Interesting.
- That's also a difference between blueberries and bilberries, which are often sold as blueberries. One of them is blue throughout, if I recall, but is more common on Europe vs. USA.
  
  Both are structurally blue on the outside. Blueberries are purple inside (pigments) while bilberries are white inside (structurally, I guess).
- Does it actually say that somewhere? So far what I've read just saying the color isn't from pigment.
  
  I thought that was what "structural color from wax bloom" meant. It's just the texture of the waxy bloom on the skin of the fruit, not any actual pigment.
That title though 🫠
- Yea, not the most clear title about what the article is about hahah

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