As Hsia recalls, the only art materials they could get hold of were red and black ink, courtesy of the military, and pencils. Sometimes they mixed the ink with glue to produce an oil-paint texture.
夏陽記得，剛開始的時候，部隊裡只找得到黑、紅兩色墨水和鉛筆，就這樣畫起來，有時候，他們會在墨水中調上漿糊，製造一點油畫的質感。