<https://design.tutsplus.com/articles/psdtuts-exclusive-freebie-announcement-15-weathered-wood-photoshop-brushes--psd-1749>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://design.tutsplus.com/articles/psdtuts-exclusive-freebie-announcement-15-weathered-wood-photoshop-brushes--psd-1749>