Design a box cover sticker featuring a Terrazzo pattern. The sticker is 25 cm long and 9 cm wide. The Terrazzo pattern, characterized by small, colorful pieces of marble and glass embedded in a concrete base, should spread across the top and bottom edges of the sticker, creating a stylish, textured border. The center of the sticker should have a subtle, light color to allow for potential labeling or additional design elements. The overall look should be modern and appealing, suitable for a decorative box cover.