Fully Solved Visual Canvas:
- Demand ($D$): Correctly drawn downward sloping in light blue.
- Supply ($S_1 \rightarrow S_2$): Shows the upward-sloping baseline curve shifting up/left with an explicit red shock arrow ($\nwarrow$).
- Equilibria ($E_1 \rightarrow E_2$): Both points are plotted with dotted projection lines to the axes, clearly indicating the price increase ($P_1^* \rightarrow P_2^*$) and output drop ($Q_1^* \rightarrow Q_2^*$).
- Surplus Areas: Includes the shaded Consumer Surplus (CS) blue triangle and cross-hatched Producer Surplus (PS) polygon.
