public IActionResult GetImage(int i, int w, int h, double sx, double sy, double ex, double ey) => File(Paintbrot.Paint(i, w, h, Extent.Create(sx, sy, ex, ey)), "image/png");
public IActionResult Plan(int w, int h) =>
Json(
Paintbrot.Plan(
new ScreenInfo {
Size = Point.Create(w, h), Bounds = Extent.Create(-2.5, -1, 1, 1)
}));
