Ключевые слова: abstract, advertisement, announcement, background, billboard, black, blackboard, blank, board, business, chalk, chalkboard, class, classroom, color, communication, concept, copy, decor, decoration, design, dirty, drawing, education, element, empty, frame, graphic, grunge, hand, handwriting, learning, marketing, menu, message, notice, old, rubbed, school, shop, space, study, studying, surface, teacher, template, textured, wall, white, writing,