private string sample16(ICanvasRenderingContext2D ctx)
{
// Create gradients
var radgrad = (ILinearCanvasGradient) ctx.createRadialGradient(45, 45, 10, 52, 50, 30);
radgrad.addColorStop(0, "#A7D30C");
radgrad.addColorStop(0.9f, "#019F62");
radgrad.addColorStop(1, "rgba(1,159,98,0)");
var radgrad2 = (ILinearCanvasGradient) ctx.createRadialGradient(105, 105, 20, 112, 120, 50);
radgrad2.addColorStop(0, "#FF5F98");
radgrad2.addColorStop(0.75f, "#FF0188");
radgrad2.addColorStop(1, "rgba(255,1,136,0)");
var radgrad3 = (ILinearCanvasGradient) ctx.createRadialGradient(95, 15, 15, 102, 20, 40);
radgrad3.addColorStop(0, "#00C9FF");
radgrad3.addColorStop(0.8f, "#00B5E2");
radgrad3.addColorStop(1, "rgba(0,201,255,0)");
var radgrad4 = (ILinearCanvasGradient) ctx.createRadialGradient(0, 150, 50, 0, 140, 90);
radgrad4.addColorStop(0, "#F4F201");
radgrad4.addColorStop(0.8f, "#E4C700");
radgrad4.addColorStop(1, "rgba(228,199,0,0)");
// draw shapes
ctx.fillStyle = radgrad4;
ctx.fillRect(0, 0, 150, 150);
ctx.fillStyle = radgrad3;
ctx.fillRect(0, 0, 150, 150);
ctx.fillStyle = radgrad2;
ctx.fillRect(0, 0, 150, 150);
ctx.fillStyle = radgrad;
ctx.fillRect(0, 0, 150, 150);
return @"Originals\Gradients\sample16.png";
}