Mung Bean Noodles Tinted

Rather interesting that the same mung beans shown below, when added to a soup base with red cabbage, took on this spooky pink color. Jut think of the possibilities of coloring noodles this way. I wonder if you could get saffron yellow noodles, or red just by cooking in beet juice. I must have read somewhere that people have been trying this, but this one was an accident.