Change Yoshi's Color Block

I really need a block that changes Yoshi's color when touched, something that works like this but its just a 16x16 block that acts like 25. Thanks to anyone in advance! <3


I did this little mock-up gif to show what I mean (It's just an edited video turned into gif)

---

I thought this existed already publically but apparently not, so here you go.

Thank you very very much Kevin! It's perfect!

---