Ключевые слова: abstract, algebra, analysis, art, axis, background, blue, business, chart, concept, contour, cube, design, diagram, dimensions, drawing, element, formula, function, geometric, geometry, glowing, graph, graphic, green, icon, illustration, infographic, isolated, light, line, linear, lineart, mathematical, neon, outline, pyramid, school, science, shape, sign, space, statistic, symbol, triangle,