... canvas.getContext('2d'); context.beginPath(); context.moveTo (10, 110) ; context.lineTo (10, 10); context.lineTo(40,40);context.lineTo(70 ,10) ;context.lineTo(70, 110) ;context.closePath(); context.stroke(); You ... Canvas. These are of particular note because gradients are used throughout the iPhone s user interface. Thus, using gradients will be a notable step toward creating an iPhone- like interface ... overlap.lighterBlending choice Where the shapes overlap, the color value is added.darkerBlending choice Where the shapes overlap, the color value is subtracted.xorBlending choice Where the shapes...