# 1. Line color and width
plt.plot(x, y, color="#1C3041", linewidth=2)
# 2. Add shaded area below the line
plt.fill_between(x, y, color="#1C3041", alpha=0.3)
# 3. Change title location and font weight
plt.title("Sales Over Time", loc="left", fontdict={"weight": "bold"}, y=1.06)

plt.xlabel("Time Period")
plt.ylabel("Sales in 000")
plt.show()