Carson, developed a technique of "ripping, shredding and remaking letters" and using "overprinted, disharmonious letters" and experimental design approaches, including "deliberate 'mistakes' in alignment". Carson's art used "... messy and chaotic design" and he did not "..respect any rule of composition", using an "..experimental, personal and intuitive" approach. Another "grunge graphic designer" was Elliott Earls, who used "distorted ... older typefaces" and "aggressively illegible" type which adopted the "unkempt expressiveness" of the "grunge aesthetic"; this radical, anti-establishment approach in graphic design was influenced by the 1910s-era avant-garde Dada movement. Hat Nguyen's Droplet, Harriet Goren's Morire and Eric Lin's Tema Canante were all "signature grunge fonts." Sven Lennartz states that grunge design images have a "realistic, genuine look" which is created by adding simulated torn paper, dog-eared corners, creases, yellowed scotch tape, coffee cup stains, hand-drawn images and handwritten words, typically over a "dirty" background texture which is done with dull, subdued colors.