tileSize
The size (in pixels) of your tile images.
Declaration
var tileSize: CGSize { get set }Discussion
On Retina displays, the system renders images pixel for pixel and doesn’t scale them. This means that if the tile size is 256 x 256 pixels and the scale factor is 2.0, the system renders the image as if it is 128 x 128 points in size. This behavior causes the tile to appear smaller, but preserves the original image data.
The default tile size is 256 x 256 pixels.