Ключевые слова: abstract, architecture, art, background, bio, bright, building, business, clean, concept, contour, design, eco, ecology, element, energy, environment, environmental, estate, friendly, glowing, graphic, green, home, house, icon, illustration, isolated, leaf, light, line, linear, lineart, natural, nature, neon, organic, outline, plant, real, recycle, recycling, shape, sign, symbol, tree,