Sky soaks umbrella / umbrella

When it rains, we look out of the window and see raining. And we are anxious to know how much it rains. Here is an umbrella that changes its color, depending on the extent of its being wet. Through the color of the umbrella, we can see how much it rains. For the wet part of the umbrella, its color is changed and irregular graphics are made. And the graphics seem to dye the umbrella as if dyestuffs are sprinkled on it, which makes our depressed mood on a rainy day pleasant.