Ключевые слова: advertisement, backdrop, background, billboard, black, black background, blackboard, blank, board, chalk, chalk background, chalkboard, class, classroom, close, copy space, dark, decoration, design, dirty, drawing, education, empty, frame, grunge, grungy, handwriting, horizontal, illustration, learning, macro, menu, nobody, old, restaurant, rubbed, school, scratch, sign, study, surface, template, texture, textured, trendy, vintage, wall, white, write,