felginep

import Foundation
import UIKit

struct ViewStyle<T> {
    let style: (T) -> Void
}

let filled = ViewStyle<UIButton> {
    $0.setTitleColor(.white, for: .normal)
    $0.backgroundColor = .red

andyyhope

//:
//:  UserDefaultable.swift
//:
//:  Created by Andyy Hope on 18/08/2016.
//:  Twitter: @andyyhope
//:  Medium: Andyy Hope, https://medium.com/@AndyyHope

import Foundation

// MARK: - Key Namespaceable

delputnam

// Returns black if the given background color is light or white if the given color is dark
func textColor(bgColor: UIColor) -> UIColor {
    
    var r: CGFloat = 0.0
    var g: CGFloat = 0.0
    var b: CGFloat = 0.0
    var a: CGFloat = 0.0
    var brightness: CGFloat = 0.0
    
    bgColor.getRed(&r, green: &g, blue: &b, alpha: &a)