First of all, we need to know the code to make a button. Here is the code of how to do it.
It is 11 lines big!

1. <Let's make a button>
2. <Capture button id "
3. (id of your button)
4. ">
5. <On Button's click: {
6. switch (any element or color you want) to "
7. (different color or element)
8. "
9. else "
10. (different color or element)
11. "}