We bounce between collecting apples and the fireworks event. You should add a collect Cherries event.
You could add cheries to levels like you do the pink flowers but instead of little white flower beds it can be a brown square with a little tree that blooms each time a match is made next to it. 3 matches the tree blooms the cherries 🍒. The bloomed cherries will auto collect and count for the event. The reward system can be like the apple event where after so many cherries are collected the reward is given out.