Morrison to IGN, 11 March: "I've asked him [Quitely] to re-introduce the much-maligned sound effects to superhero comics but in a way that integrates them more closely with the art."
Morrison to CBR, 19 March: "And he’s [Quitely's] producing things like sound effects, because nobody does sound effects anymore. Everybody has given up on them, so what we’ve done is incorporate them into the artwork. When someone hits water, the water rises up and makes the ‘splash’ effect. It just looks fantastic."