Why is border of graphics transparent

[UncleZan]

		var progressBar = new PIXI.Graphics();
		progressBar.lineStyle(1,0xFFFFFF);
		progressBar.beginFill(0x658d7d,1);
		progressBar.drawRect(0,0,1060,12);
		progressBar.endFill();

I want to draw a white border of rect,but I don't understand why the border is transparent. 

 

 

 

 

 

 

[xerver]

It is pixel interpolation, notice that even though your border is 1 pixel wide it is 2 pixels in this screenshot. This usually happens when your object is at non-integer coordinates, or at a resolution where the coordinates you have don't align to pixels so it is interpolated between the two pixels that straddle the coordinate you asked for. This is done by the browser, not pixi.

[UncleZan]

Thank you！