Plugin to map roof colour


I was thinking in a plugin to mapa roof colour fatest. A plugin that…

1 - First Click: Get pixel colour from the satelite imagery
2 - Second Click: On the building, creating two tags:
a. roof:colour = Hexadecimal value got from the imagery pixel
b. source:roof:colour = imagery source (Bing, Mapbox, …)

Only 2 clicks to map a roof:colour of a building. I know that a plugin like this is possible. But I’m not developer. Anybody can build my idea?