Ключевые слова: abstract, app, art, background, bathroom, battery, building, central, collection, color, colored, comfort, design, domestic, drawing, element, elements, energy, flat, graphic, heat, heater, heating, home, house, icon, icons, illustration, interior, isolated, layout, metal, mobile, modern, outline, pipes, radiator, repairs, room, shadow, sign, symbol, system, temperature, warm, web, website, winter,