This example shows how to create colors from pattern images.
There are two images that come with the standard C4 installer, we will use them to stroke and fill a shape:
To create a color from any image, simply do this:
let color = Color("pattern1")
let f = Rect(0, 0, 200, 200)
let rect = Rectangle(frame: f)
rect.lineWidth = 50.0
rect.center = canvas.center
canvas.add(rect)
rect.strokeColor = Color("pattern1")
rect.fillColor = Color("pattern2")