Csharp 反序列化我以前使用System.Text.Json序列化的文件时出现异常

在我的C#(V9).NET6应用程序中，我有一个带有以下成员变量的类:

private readonly List<Dictionary<ConsoleColor, ConsoleColor>> colours = new ()
{
    new Dictionary <ConsoleColor, ConsoleColor> (),
    new Dictionary <ConsoleColor, ConsoleColor> ()
};

我把它写在json中，在一个像这样的文件中:

using System.Text.Json;
using System.Text.Json.Serialization;    

var options = new JsonSerializerOptions {
    WriteIndented = true,
    Converters = {
        new JsonStringEnumConverter (JsonNamingPolicy.CamelCase)
    }
};
string json = JsonSerializer.Serialize (this.colours, options);
using StreamWriter stream = File.CreateText (filePath);
stream.Write (json);

但当我试着再读一遍这篇文章时，如下所示:

string json = File.ReadAllText (filePath);
var options = new JsonSerializerOptions
{
    PropertyNameCaseInsensitive = true
};
this.colours = JsonSerializer.Deserialize<List<Dictionary<ConsoleColor,ConsoleColor>>> (json,options);

我得到了一个例外:

"无法将JSON值转换为 System.Collections.Generic.Dictionary`2[System.ConsoleColor，系统控制台 colored颜色 ]. 路径:$[0].Blue|线号:2|BytePositionInLine:18.

我做错了什么？Json看起来像一个字符串--异常发生在反序列化(JsonSerializer.是非序列化)时.我认为它可能需要一个 colored颜色 的数字，而不是阅读文本，但我真的希望我的JSON是人类可读的(在必要时，可以编辑).

Json文件如下所示:

[
  {
    "blue": "gray",
    "cyan": "gray",
    "darkBlue": "darkGray",
    "darkCyan": "darkGray",
    "darkGreen": "darkGray",
    "darkMagenta": "darkGray",
    "darkRed": "darkGray",
    "darkYellow": "darkGray",
    "green": "gray",
    "magenta": "gray",
    "red": "gray",
    "yellow": "gray"
  },
  {
    "black": "black",
    "blue": "gray",
    "cyan": "gray",
    "darkBlue": "darkGray",
    "darkCyan": "darkGray",
    "darkGreen": "darkGray",
    "darkMagenta": "darkGray",
    "darkRed": "darkGray",
    "darkYellow": "darkGray",
    "green": "gray",
    "magenta": "gray",
    "red": "gray",
    "yellow": "gray"
  }
]