Theme not changing

[mustran]

Recently I started to develop a site with Gatsby and I wanted the code highlight to match the one I use in vscode, that's why I downloaded gatsby-remark-vscode, but I ran into a problem that is whatever theme I try to use, in the end I'm still getting the default dark theme from vscode.

The gatsby started I am using is gatsby-personal-starter-blog

This is my gatsby-config.js configuration:

module.exports = {
  siteMetadata: {
    // edit below
    title: `Gatsby Starter Personal Blog`,
    author: `Kyle Matthews`,
    description: `A starter personal blog with styled components, dark mode, and Netlify CMS.`,
    siteUrl: `https://gatsby-starter-blog-demo.netlify.com/`,
    social: {
      twitter: `kylemathews`,
    },
  },
  plugins: [
    `gatsby-plugin-netlify-cms`,
    `gatsby-plugin-styled-components`,
    `gatsby-transformer-sharp`,
    `gatsby-plugin-sharp`,
    `gatsby-plugin-offline`,
    `gatsby-plugin-react-helmet`,
    `gatsby-plugin-feed-mdx`,
    {
      resolve: `gatsby-transformer-remark`,
      options: {
        plugins: [
          {
            resolve: `gatsby-remark-vscode`,
            options: {
              theme: "Monokai", // Or install your favorite theme from GitHub
            },
          },
        ],
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/content/blog`,
        name: `blog`,
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/content/assets`,
        name: `assets`,
      },
    },
    {
      resolve: `gatsby-plugin-mdx`,
      options: {
        extensions: [".mdx", ".md"],
        gatsbyRemarkPlugins: [
          {
            resolve: `gatsby-remark-images`,
            options: {
              maxWidth: 590,
            },
          },
          {
            resolve: `gatsby-remark-responsive-iframe`,
            options: {
              wrapperStyle: `margin-bottom: 1.0725rem`,
            },
          },
          {
            resolve: `gatsby-remark-copy-linked-files`,
          },
          {
            resolve: `gatsby-remark-smartypants`,
          },
        ],
      },
    },
    {
      resolve: `gatsby-plugin-google-analytics`,
      options: {
        // edit below
        // trackingId: `ADD YOUR TRACKING ID HERE`,
      },
    },
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: `Gatsby Starter Blog`,
        short_name: `GatsbyJS`,
        start_url: `/`,
        background_color: `#ffffff`,
        theme_color: `#663399`,
        display: `minimal-ui`,
        // edit below
        icon: `content/assets/gatsby-icon.png`,
      },
    },
    {
      resolve: `gatsby-plugin-typography`,
      options: {
        pathToConfigModule: `src/utils/typography`,
      },
    },
  ],
}

I am using these versions for gatsby-transformer-remark and gatsby-remark-vscode:
"gatsby-transformer-remark": "^2.8.14"
"gatsby-remark-vscode": "^2.1.1"