let style = TextStyle { style in
    style.set(.font, UIFont.systemFont(ofSize: 18, weight: .regular))
    style.set(.foregroundColor, .black)
}

let label = UILabel()
label.attributedText = style(text: "Hello World!")

extension TextStyle {
    static let body = TextStyle { style in
        style.set(.font, UIFont.systemFont(ofSize: 18, weight: .regular))
    }

    static let uppercase = TextStyle { style in
        style.add(transformer: .init(\.localizedUppercase))
    }
}

let combined: TextStyle = .combining(.body, .uppercase)

// or using `+` operator

let combined: TextStyle = .body + .uppercase

let label = TextileLabel(textStyle: .combining(.body, .uppercase), text: "Hello World!")

let attributedText = NSMutableAttributedString()
attributedText.append("First we need a title\n".style(.heading))
attributedText.append("Here starts the ".style(.body))
attributedText.append("body text".style(.body + .underlined))
attributedText.append(", then suddenly we might want some".style(.body))
attributedText.append(" bold text ".style(.bodyBold))
attributedText.append("in the middle.\n".style(.body))
attributedText.append("...and then some right-aligned text".style(.body + .rightGray))

let label = UILabel()
label.lineBreakMode = .byWordWrapping
label.numberOfLines = 0
label.attributedText = attributedText