Trevor is widely recognised for his formally structured, minimalist approach to painting that is informed by his sustained engagement with a limited range of colours and an admiration for the commonplace. In 2008 he was included in CANOA, a large touring exhibition of Australian non-objective artworks that was shown in three venues in Germany. He was also commissioned in 2008-9 to make a large work for All colours permitted as long as they don’t interfere with commerce, a major international exhibition presented in the cities of Katowice and Szcecin in Poland.