LineStyleCanvas = function (ctx, src, altColor, altAlpha)
{
    var strokeColor = (altColor) ? altColor : src.strokeColor;
    var strokeAlpha = (altAlpha) ? altAlpha : src.strokeAlpha;

    var red = ((strokeColor & 0xFF0000) >>> 16);
    var green = ((strokeColor & 0xFF00) >>> 8);
    var blue = (strokeColor & 0xFF);

    ctx.strokeStyle = 'rgba(' + red + ',' + green + ',' + blue + ',' + strokeAlpha + ')';
    ctx.lineWidth = src.lineWidth;
}
Sets the strokeStyle and lineWidth on the target context based on the given Shape.

@method Phaser.GameObjects.Shape#LineStyleCanvas
@since 3.13.0
@private

@param {CanvasRenderingContext2D} ctx - The context to set the stroke style on.
@param {Phaser.GameObjects.Shape} src - The Game Object to set the stroke style from.
@param {number} [altColor] - An alternative color to render with.
@param {number} [altAlpha] - An alternative alpha to render with.