Fourth story in the Frank Miller's Sin City series. First story to use colors; three previous stories were completely black/white. Well, it only included one additional color, which was - obviously - yellow.
In the story that yellow bastard is son of Sin City's mayor; an ugly, perverted little thing. Every time he is shown in the pages, he is coloured yellow, while everything else remains black/white. Very powerful trick, something at least that I have never seen done before.
Also my favourite Sin City story. Well, it's a close call between this and the first, original story.