What changed with the level 40 update? (Thanks to TSTOTopix)

madfish86 wrote:
Did the XP progress bar change color? I don't remember it being blue.

Yes, when you "level up" it is always blue. When you are on the bonus levels (after completing the highest level), then it is pink.

So any time a new level is released, it will be blue. When you complete level 40 (making it all the way across) then it will be pink for all the bonus levels.