More than colors. The city of Madrid gave a ticket to the owner as his building needed a face lift. The poor owner could not afford to paint the building with a single color. So he went to his friends to ask if they have old paints they no longer need. He collected a bunch of different colored paints. Yellow. Green. Red. Pink. Orange. And blue. Borrowing from Warhol's pop colors, he began to apply the paints selectively. Not a drop was wasted. Because some of the paints were used on his chocolates. Genius.