UIImage extension that returns a SFSymbol image that matches to the specified font

SFSymbolWithFont.swift

extension UIImage {
    static func symbol(named systemName: String, font: UIFont? = nil) -> UIImage? {
        if #available(iOS 13.0, *) {
            let image: UIImage?
            if let font = font {
                let symbolConfiguration = UIImage.SymbolConfiguration(font: font)
                image = UIImage(systemName: systemName, withConfiguration: symbolConfiguration)
            } else {
                image = UIImage(systemName: systemName)
            }
            return image?.withRenderingMode(.alwaysTemplate)
        } else {
            return nil
        }
    }
}

// Example Usage:
let button = UIButton(type: .custom)
button.titleLabel?.font = UIFont.preferredFont(forTextStyle: .title1)
let buttonTitle = "Share"
let buttonImage = UIImage.symbol(named: "square.and.arrow.up", font: button.titleLabel?.font)
button.setTitle(buttonTitle, for: UIControl.State())
button.setImage(buttonImage, for: UIControl.State())
button.contentEdgeInsets = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 10)
button.titleEdgeInsets = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: -5)
button.tintColor = button.titleLabel?.textColor
view.addSubview(button)
button.translatesAutoresizingMaskIntoConstraints = false
button.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
button.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true