Ключевые слова: app, art, atom, attention, badge, blue, button, chemical, chemistry, color, colorful, concept, contour, danger, design, document, ecology, energy, file, flat, graphic, hazard, icon, illustration, information, isolated, line, linear, lineart, mark, nuclear, outline, pollution, power, radiation, radioactive, report, science, shape, sign, symbol, test, token, toxic, warning, white,