Chalk & Charcoal Effects Volume 1 790036 Craft a realistic, handmade chalk or charcoal look in seconds with these 15 chalk and 15 charcoal effects in a variety of formats. Use the Photoshop layer styles for quick, 1-click special effects, or the PAT Photoshop pattern files to add custom texture to any layer. Universal, transparent PNG files let you apply the seamless patterns in any software, making this kit both beautiful and flexible.