ThemeManagerDemo use Category to add theme. Also,it's very easy to add theme to your app without changing many existing code. You can apply theme to UIButton and UILabel and UISearchBar,etc.You can expand as needed.
Configure the colors according to requirements
// Apply theme text color for Label
[self.desLabel th_setTextColor];
// Apply theme text color for button
[self.desButton th_setBackgroundColor];
