Ключевые слова: abstract, art, backdrop, background, black, blank, blueprint, creative, decoration, decorative, design, drafting, drawing, education, element, empty, engineering, fabric, geometric, geometry, graph, graphic, grid, illustration, line, math, mathematics, modern, paper, pattern, print, repeat, retro, school, seamless, shape, sheet, simple, sketch, square, stripe, style, technical, technology, template, texture, tile, wallpaper, white, wrapping,