Ключевые слова: alternative, background, bio, cloud, color, concept, conceptual, conservation, design, doodle, earth, eco, ecological, ecology, element, energy, environment, environmental, friendly, go, graphic, green, icon, illustration, isolated, kind, label, leaf, lettering, natural, nature, organic, plans, pollution, power, product, protection, quality, recycle, recycling, sign, sketch, stamp, sticker, symbol, text, tree, typography, white, word,