FlutterでTextにグラデーションをかけようとすると、端っこに塗り残しができる

                    ShaderMask(
                      shaderCallback: (rect) {
                        return LinearGradient(
                          begin: Alignment.topCenter,
                          end: Alignment.bottomCenter,
                          colors: [
                            Color(0xffffe5f2),
                            Color(0xffff94e1),
                            Color(0xffe95481),
                            Color(0xffffd260)
                          ],
                        ).createShader(rect);
                      },
                      child: SelectableText(
                        "HogeHoge",
                      ),
                    )