Change color of Path Item using JavaScript

Hello, I'm using the following function below to draw some lines in photoshop.

What I'm wondering is, how does one change the color of a path before drawing it? I haven't been able to find anything on changing color for paths specifically. 

function drawLine(doc, start, stop) {

var startPoint = new PathPointInfo();

startPoint.anchor = start;

startPoint.leftDirection = start;

startPoint.rightDirection = start;

startPoint.kind = PointKind.CORNERPOINT;

var stopPoint = new PathPointInfo();

stopPoint.anchor = stop;

stopPoint.leftDirection = stop;

stopPoint.rightDirection = stop;

stopPoint.kind = PointKind.CORNERPOINT;

var spi = new SubPathInfo();

spi.closed = false;

spi.operation = ShapeOperation.SHAPEXOR;

spi.entireSubPath = [startPoint, stopPoint];

var line = doc.pathItems.add("Line", [spi]);

line.strokePath(ToolType.PENCIL);

line.remove();

};

drawLine(app.activeDocument, [100,100], [200,200]);