Is this Swift code?

#if os(iOS)
    import UIKit
    typealias HSColor = UIColor
    typealias HSFont = UIFont
    typealias HSImage = UIImage
    typealias HSView = UIView
#elseif os(macOS)
    import AppKit
    typealias HSColor = NSColor
    typealias HSFont = NSFont
    typealias HSImage = NSImage
    typealias HSView = NSView

    extension NSFont {
        public class func italicSystemFont(ofSize fontSize: CGFloat) -> NSFont {
            let f = NSFontManager.shared.font(withFamily: "System",
                                              traits: .italicFontMask,
                                              weight: 0,
                                              size: fontSize)
            return f!
        }
    }

    extension NSColor {
        static var darkText: HSColor { return HSColor.black }
        static var lightText: HSColor { return HSColor.white }
        static var label: HSColor { return HSColor.labelColor }
    }
#endif

#if os(iOS)

import UIKit

typealias HSColor = UIColor

typealias HSFont = UIFont

typealias HSImage = UIImage

typealias HSView = UIView

#elseif os(macOS)

import AppKit

typealias HSColor = NSColor

typealias HSFont = NSFont

typealias HSImage = NSImage

typealias HSView = NSView

extension NSFont {

public class func italicSystemFont(ofSize fontSize: CGFloat) -> NSFont {

let f = NSFontManager.shared.font(withFamily: "System",

traits: .italicFontMask,

weight: 0,

size: fontSize)

return f!

}

extension NSColor {

static var darkText: HSColor { return HSColor.black }

static var lightText: HSColor { return HSColor.white }

static var label: HSColor { return HSColor.labelColor }

}

#endif