Ключевые слова: 26, april, author, background, black, brand, business, card, celebration, concept, copyright, creative, creativity, day, design, education, element, event, free, greeting, holiday, icon, idea, illustration, imagination, infringement, innovation, intellectual, intellectual property, invention, knowledge, legal, literature, logo, name, original, patent, piracy, property, protection, rights, royalties, sign, silhouette, symbol, value, white, work, world,