clean
[red]red, [bold]red+bold, &rclean
[blue]blue, [green]green, [underline]green+underline, [darkblue]darkblue+underline, &rclean
&rclean, [red]red, &r&r&rstill clean

clean§cred, §lred+bold, §rclean§9blue, §agreen, §ngreen+underline, §1darkblue+underline, §rcleanclean, §cred, §fstill clean

[
  {
    "text": "",
    "extra": [
      "clean",
      {
        "text": "",
        "extra": [
          {
            "text": "red, ",
            "color": "red"
          },
          {
            "text": "red+bold, ",
            "color": "red",
            "bold": true
          },
          "clean"
        ]
      },
      {
        "text": "",
        "extra": [
          {
            "text": "blue, ",
            "color": "blue"
          },
          {
            "text": "green, ",
            "color": "green"
          },
          {
            "text": "green+underline, ",
            "color": "green",
            "underlined": true
          },
          {
            "text": "darkblue+underline, ",
            "color": "dark_blue",
            "underlined": true
          },
          "clean"
        ]
      },
      {
        "text": "",
        "extra": [
          "clean, ",
          {
            "text": "red, ",
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          },
          "still clean"
        ]
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]