Ключевые слова: abstract, aging, ancient, antique, background, black, blackboard, blank, border, brown, business, business abstract, business backgrounds, business concepts, chalk, chalk drawing, color, contrasts, cross shape, crossed out, decorative, deleted, dirt, grunge, grungy, handwriting, illustration, initiative, nobody, old, paint, paper, pattern, proactive, reactive, retro, sayings, stained, text, texture, vintage, wall, white, writing, yellow,