Ключевые слова: 3d, activity, amusement, art, background, boat, childhood, children, climbing, color, colorful, contour, double, equipment, exercise, extreme, fun, game, gradient, health, icon, illustration, isolated, isometric, kid, leisure, line, linear, lineart, nature, outdoor, outline, park, plane, play, playground, recreation, rock, rope, sign, sport, summer, symbol, toy, tree, wall, wooden,