The way it works is super simple. You draw a circuit with conductive paint under a layer of thermochromatic paint. Then you run electricity through your circuit, which makes it heat up and the thermochromatic paint changes color. I decided to try drawing a tree that would “grow” leaves when I completed the circuit.

My conductive drawing was pretty big, and it took a lot of power to make it heat up enough for the thermochromatic paint to change color.

On my second attempt, I decided to try working on a smaller scale, and I made a cherry blossom tree bloom.