Testing out the new UIGraphicsImageRenderer class on iOS 11

UIImage+Extensions.swift

import UIKit

extension UIImage {
    
    convenience init?(color: UIColor, size: CGSize = CGSize(width: 1.0, height: 1.0)) {
        let image = UIGraphicsImageRenderer(size: size).image { context in
            color.setFill()
            context.fill(CGRect(origin: .zero, size: size))
        }
        
        guard let cgImage = image.cgImage else {
            return nil
        }
        
        self.init(cgImage: cgImage)
    }
    
}

extension UIImage {
    
    func tinted(_ color: UIColor) -> UIImage? {
        return UIGraphicsImageRenderer(size: size).image { context in
            color.setFill()
            context.fill(context.format.bounds)
            draw(in: context.format.bounds, blendMode: .destinationIn, alpha: 1.0)
        }
    }
    
}