Draw the flag of Czechia in the center of the canvas. It is 300 units wide and 200 units high.

1. Color the top half white and the bottom half red.
2. Draw a blue triangle on the left side. Its points are the top-left corner, the bottom-left corner, and the center of the flag.
3. Add a thin black outline around the triangle and the flag’s outer edge.

The two colored halves meet without a gap. The triangle covers part of both halves.