Brite Core - At least 30% off - Crescent Brite Cores Matboards add a bold, colorful and striking element to your artwork by creating a colorful bevel. Choose either a black or white surface color. Core and backing paper color options are blue, green, red, yellow, orange or purple. Brite Cores Matboards are acid-free and lignin-free, and are extra thick to create a deep bevel. These boards are suitable for decorative framing and general presentation purposes.