Duolingo Streak Society Progress and Shimmer Animation

Upon landing on the Streak Society progress screen, multiple idle animations loop simultaneously to create a celebratory and rewarding feel. The golden Duo mascot wiggles and floats while its wings flap. A bright shimmer effect sweeps across the 'Streak Society' badge and the filled portion of the progress bar. At the end of the progress bar, the reward chest wiggles periodically to draw the user's eye toward the goal.