Ключевые слова: abstract, alternative, art, background, blue, bright, care, clean, color, colorful, concept, conservation, contour, design, drop, earth, eco, ecological, ecology, electric, electricity, element, energy, environment, environmental, flat, glowing, gradient, graphic, icon, illustration, isolated, life, light, lightning, line, linear, lineart, natural, nature, neon, outline, plant, power, protection, save, sign, symbol, water,