dump SF symbols as PNG

dump_sf_icon_as_png.swift

import UIKit

import UIKit
import PlaygroundSupport

class MyViewController : UIViewController {
    override func loadView() {
        let view = UIView()
        view.backgroundColor = .white

        var image = UIImage(systemName: "plus.circle.fill")!
        image = image.withTintColor(.init(
            red: 0x37/255.0,
            green: 0xc6/255.0,
            blue:   0x59 / 255.0,
            alpha: 1.0), renderingMode: .alwaysOriginal)

        let updatedConfiguration = UIImage.SymbolConfiguration(weight: .bold)

        let sizes: [CGFloat] = [120, 152, 167, 180, 1024]

        sizes.forEach { x in

              let v = UIImageView(image: image)
            v.preferredSymbolConfiguration = updatedConfiguration
              v.frame = CGRect(x: 0, y: 0, width: x, height: x)
              v.contentMode = .scaleAspectFit
              v.tintColor = .black

              let scale = 1
              UIGraphicsBeginImageContextWithOptions(v.layer.frame.size, false, CGFloat(scale))
              v.layer.render(in: UIGraphicsGetCurrentContext()!)
              let viewImage = UIGraphicsGetImageFromCurrentImageContext()!
              UIGraphicsEndImageContext()
              let data = viewImage.pngData()
              let documentsDir = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as! String
            let n = Int(x)
              let writePath  = URL(fileURLWithPath:  documentsDir + ("/\(n)-\(n).png"))
            print(writePath)
            try!  data?.write(to: writePath)

            view.addSubview(v)
            self.view = view

        }
    }
}
// Present the view controller in the Live View window
PlaygroundPage.current.liveView = MyViewController()

Thanks for sharing this!