anchor.diff:    /// A solid down arrow.
     static const IconData down_arrow = IconData(0xf35d, fontFamily: iconFont, fontPackage: iconFontPackage);
   
  +  /// A solid up arrow.
  +  static const IconData up_arrow = IconData(0xf366, fontFamily: iconFont, fontPackage: iconFontPackage);
  +
     /// A charging battery.
     static const IconData battery_charging = IconData(0xf111, fontFamily: iconFont, fontPackage: iconFontPackage);
   
  
positive.code: 
    /// Two right-facing intertwined arrows.
    static const IconData shuffle_thick = IconData(0xf221, fontFamily: iconFont, fontPackage: iconFontPackage);
  }
  
negative.code:   /// A thin right chevron.
    static const IconData right_chevron = IconData(0xf3d3, fontFamily: iconFont, fontPackage: iconFontPackage, matchTextDirection: true);
  
    /// iOS style share icon with an arrow pointing up from a box. This icon is not filled in.
    ///
    /// See also:
    ///
    ///  * [share_solid], which is similar, but filled in.
    ///  * [share_up], for another (pre-iOS 7) version of this icon.
    static const IconData share = IconData(0xf4ca, fontFamily: iconFont, fontPackage: iconFontPackage);
  
    /// iOS style share icon with an arrow pointing up from a box. This icon is filled in.
    ///
    /// See also:
    ///
    ///  * [share], which is similar, but not filled in.
    ///  * [share_up], for another (pre-iOS 7) version of this icon.
    static const IconData share_solid = IconData(0xf4cb, fontFamily: iconFont, fontPackage: iconFontPackage);
  
    /// A book silhouette spread open.
    static const IconData book = IconData(0xf3e7, fontFamily: iconFont, fontPackage: iconFontPackage);
  