OpenType SVG Brush Font Pure Heart a full colour brush font created and designed by Greg Nicholls in Fonts Display. OpenType-SVG Font - This is the main font file containing all the hyper realistic effects. So how does it work? Instead of vectorizing the letters, Pure Heart uses actual images and transparency effects in order to get the quality that you see. This is all made possible thanks to the latest developments of the OpenType-SVG format, and the integration of that technology into PS.