How did Twitter get its logo?

Related questions

1. How big is a twitter profile picture?
2. What is a twitter profile pic called?
3. What is the best size for twitter images?
4. How long can tweets be on twitter?
5. How did the name twitter come about?
6. Is twitter owned by?
7. What is a like called on twitter?
8. Why is my twitter account locked?
9. What dimensions should a logo be?
10. Can I use Facebook logo?

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