水中墨Ink in Water

在水面上停住指尖或鼠标，墨和清水轮流从那里推开，一圈套一圈，新的墨环会把旧的挤弯；换个地方停，就换一种颜色。划动是梳水。右上角能换成毛笔、清水或金箔，也能铺一张纸把墨纹拓下来。Hold your finger or pointer still on the water and ink and clear water take turns spreading from it, ring inside ring, each new set nudging the old ones out of round; rest somewhere new for a new colour. Move to comb the pattern. At the top you can switch to a brush, clear water or gold leaf, or lay paper on the water and lift the pattern off as a print.