Ключевые слова: analysis, art, blackboard, blue, board, business, chalk, chalkboard, chart, color, colorful, concept, contour, data, design, diagram, education, finance, financial, flat, graph, graphic, growth, icon, illustration, infographic, isolated, line, linear, lineart, market, marketing, office, outline, presentation, profit, progress, report, sales, schedule, seminar, sign, success, training, white,