class CharSize { CharSize({ this.width, this.height, this.letterSpacing, this.lineSpacing, this.effectWidth, this.effectHeight, }); final double width; final double height; final double letterSpacing; final double lineSpacing; final double effectWidth; final double effectHeight; @override String toString() { final data = { 'width': width, 'height': height, 'letterSpacing': letterSpacing, 'lineSpacing': lineSpacing, 'effectWidth': effectWidth, 'effectHeight': effectHeight, }; return 'CharSize$data'; } }