content: import 'package:flutter/material.dart';
  import 'package:flutter_screenutil/flutter_screenutil.dart';
  
  import 'tool_widgets.dart';
  
  // 定义常用的颜色
  
  var blackHeadTextStyle = TextStyle(
    fontFamily: "BarlowBold",
    fontSize: 16.sp,
    color: Colors.black,
  );
  
  var appBarTextStyle = TextStyle(
    fontFamily: "BarlowBold",
    fontSize: 20.sp,
  );
  
  // 图标的大小
  var appBarIconButtonSize = 20.sp;
  var bottomIconButtonSize1 = 20.sp;
  
  var bottomIconButtonSize2 = 16.sp;
  var bottomIconButtonSize3 = 12.sp;
  
  // tabview中tab标题文字的宽度
  var tabWidth = 80.sp;
  var tabContainerHeight = 30.sp;
  
  // 定义常用的字体大小
  var sizeHeadline0 = 24.sp;
  var sizeHeadline1 = 20.sp;
  var sizeHeadline2 = 16.sp;
  var sizeHeadline3 = 14.sp;
  var sizeHeadline4 = 12.sp;
  var sizeContent0 = 18.sp;
  var sizeContent1 = 16.sp;
  var sizeContent2 = 14.sp;
  var sizeContent3 = 12.sp;
  var sizeContent4 = 10.sp;
  
  // 定义dialog字体
  var sizeDialogTitle = 16.sp;
  var sizeDialogContent = 14.sp;
  var sizeDialogButton = 14.sp;
  
  // 测试本地音乐的显示背景色，整体背景色和mini bar的有稍微区别(后缀越大，颜色越深)
  // 后续应该要整专门的自定义主题进行切换，例如深色/浅色模式
  // 测试用的深色背景色
  
  var dartThemeMaterialColor1 =
      buildMaterialColor(const Color.fromARGB(255, 116, 102, 102));
  
  var dartThemeMaterialColor2 =
      buildMaterialColor(const Color.fromARGB(255, 87, 82, 82));
  
  var dartThemeMaterialColor3 =
      buildMaterialColor(const Color.fromARGB(255, 59, 56, 56));
  