Ключевые слова: analysis, arrows, backdrop, background, biology, black, block, blue, brick, building, chart, chemistry, concept, dark, development, discovery, drawing, drawn, education, experiment, flowchart, gray, grunge, hand, idea, information, innovation, inventor, knowledge, lab, laboratory, measurement, natural, paint, physics, plan, process, research, scheme, school, science, strategy, technology, text, texture, vintage, wall, white, word,