function createCssVariablesTheme(options = {}) {
  const {
    name = "css-variables",
    variablePrefix = "--shiki-",
    fontStyle = true
  } = options;
  const variable = (name2) => {
    if (options.variableDefaults?.[name2])
      return `var(${variablePrefix}${name2}, ${options.variableDefaults[name2]})`;
    return `var(${variablePrefix}${name2})`;
  };
  const theme = {
    name,
    type: "dark",
    colors: {
      "editor.foreground": variable("foreground"),
      "editor.background": variable("background"),
      "terminal.ansiBlack": variable("ansi-black"),
      "terminal.ansiRed": variable("ansi-red"),
      "terminal.ansiGreen": variable("ansi-green"),
      "terminal.ansiYellow": variable("ansi-yellow"),
      "terminal.ansiBlue": variable("ansi-blue"),
      "terminal.ansiMagenta": variable("ansi-magenta"),
      "terminal.ansiCyan": variable("ansi-cyan"),
      "terminal.ansiWhite": variable("ansi-white"),
      "terminal.ansiBrightBlack": variable("ansi-bright-black"),
      "terminal.ansiBrightRed": variable("ansi-bright-red"),
      "terminal.ansiBrightGreen": variable("ansi-bright-green"),
      "terminal.ansiBrightYellow": variable("ansi-bright-yellow"),
      "terminal.ansiBrightBlue": variable("ansi-bright-blue"),
      "terminal.ansiBrightMagenta": variable("ansi-bright-magenta"),
      "terminal.ansiBrightCyan": variable("ansi-bright-cyan"),
      "terminal.ansiBrightWhite": variable("ansi-bright-white")
    },
    tokenColors: [
      {
        scope: [
          "keyword.operator.accessor",
          "meta.group.braces.round.function.arguments",
          "meta.template.expression",
          "markup.fenced_code meta.embedded.block"
        ],
        settings: {
          foreground: variable("foreground")
        }
      },
      {
        scope: "emphasis",
        settings: {
          fontStyle: "italic"
        }
      },
      {
        scope: ["strong", "markup.heading.markdown", "markup.bold.markdown"],
        settings: {
          fontStyle: "bold"
        }
      },
      {
        scope: ["markup.italic.markdown"],
        settings: {
          fontStyle: "italic"
        }
      },
      {
        scope: "meta.link.inline.markdown",
        settings: {
          fontStyle: "underline",
          foreground: variable("token-link")
        }
      },
      {
        scope: ["string", "markup.fenced_code", "markup.inline"],
        settings: {
          foreground: variable("token-string")
        }
      },
      {
        scope: ["comment", "string.quoted.docstring.multi"],
        settings: {
          foreground: variable("token-comment")
        }
      },
      {
        scope: [
          "constant.numeric",
          "constant.language",
          "constant.other.placeholder",
          "constant.character.format.placeholder",
          "variable.language.this",
          "variable.other.object",
          "variable.other.class",
          "variable.other.constant",
          "meta.property-name",
          "meta.property-value",
          "support"
        ],
        settings: {
          foreground: variable("token-constant")
        }
      },
      {
        scope: [
          "keyword",
          "storage.modifier",
          "storage.type",
          "storage.control.clojure",
          "entity.name.function.clojure",
          "entity.name.tag.yaml",
          "support.function.node",
          "support.type.property-name.json",
          "punctuation.separator.key-value",
          "punctuation.definition.template-expression"
        ],
        settings: {
          foreground: variable("token-keyword")
        }
      },
      {
        scope: "variable.parameter.function",
        settings: {
          foreground: variable("token-parameter")
        }
      },
      {
        scope: [
          "support.function",
          "entity.name.type",
          "entity.other.inherited-class",
          "meta.function-call",
          "meta.instance.constructor",
          "entity.other.attribute-name",
          "entity.name.function",
          "constant.keyword.clojure"
        ],
        settings: {
          foreground: variable("token-function")
        }
      },
      {
        scope: [
          "entity.name.tag",
          "string.quoted",
          "string.regexp",
          "string.interpolated",
          "string.template",
          "string.unquoted.plain.out.yaml",
          "keyword.other.template"
        ],
        settings: {
          foreground: variable("token-string-expression")
        }
      },
      {
        scope: [
          "punctuation.definition.arguments",
          "punctuation.definition.dict",
          "punctuation.separator",
          "meta.function-call.arguments"
        ],
        settings: {
          foreground: variable("token-punctuation")
        }
      },
      {
        // [Custom] Markdown links
        scope: [
          "markup.underline.link",
          "punctuation.definition.metadata.markdown"
        ],
        settings: {
          foreground: variable("token-link")
        }
      },
      {
        // [Custom] Markdown list
        scope: ["beginning.punctuation.definition.list.markdown"],
        settings: {
          foreground: variable("token-string")
        }
      },
      {
        // [Custom] Markdown punctuation definition brackets
        scope: [
          "punctuation.definition.string.begin.markdown",
          "punctuation.definition.string.end.markdown",
          "string.other.link.title.markdown",
          "string.other.link.description.markdown"
        ],
        settings: {
          foreground: variable("token-keyword")
        }
      },
      {
        // [Custom] Diff
        scope: [
          "markup.inserted",
          "meta.diff.header.to-file",
          "punctuation.definition.inserted"
        ],
        settings: {
          foreground: variable("token-inserted")
        }
      },
      {
        scope: [
          "markup.deleted",
          "meta.diff.header.from-file",
          "punctuation.definition.deleted"
        ],
        settings: {
          foreground: variable("token-deleted")
        }
      },
      {
        scope: [
          "markup.changed",
          "punctuation.definition.changed"
        ],
        settings: {
          foreground: variable("token-changed")
        }
      }
    ]
  };
  if (!fontStyle) {
    theme.tokenColors = theme.tokenColors?.map((tokenColor) => {
      if (tokenColor.settings?.fontStyle)
        delete tokenColor.settings.fontStyle;
      return tokenColor;
    });
  }
  return theme;
}

export { createCssVariablesTheme };