Also,many bills now have color-shifting ink that looks like metallic paint.

VOA: special.2010.11.15

So that was like four years of like free paint brushes and canvases

所以那是四年的免费画笔和画布，

选择美术的原因 - SpeakingMax英语口语达人

Some prints look like layers of colorful spills of paint.

VOA: special.2009.09.02