whenTheme<T>  method 
      
T
whenTheme<T>({  
    
- required T light(),
- T dark()?,
When the theme is in light mode, return light function, else return dark function
Implementation
// ignore: avoid_shadowing_type_parameters
T whenTheme<T>({
  required T Function() light,
  T Function()? dark,
}) {
  bool isDarkModeEnabled = false;
  ThemeController themeController = ThemeProvider.controllerOf(context);
  if (themeController.currentThemeId == getEnv('DARK_THEME_ID')) {
    isDarkModeEnabled = true;
  }
  if ((themeController.theme.options as NyThemeOptions).meta is Map &&
      (themeController.theme.options as NyThemeOptions).meta['type'] ==
          NyThemeType.dark) {
    isDarkModeEnabled = true;
  }
  if (context.isDeviceInDarkMode) {
    isDarkModeEnabled = true;
  }
  if (isDarkModeEnabled) {
    if (dark != null) {
      return dark();
    }
  }
  return light();
}