Ключевые слова: abstract, art, atom, background, bio, biology, biotechnology, black, button, cell, chemical, chemistry, circle, color, colorful, concept, connection, contour, design, dna, element, graphic, green, icon, illustration, isolated, line, linear, lineart, medical, medicine, micro, model, molecular, molecule, outline, physics, research, science, scientific, shape, sign, structure, symbol, technology,