Examine source code of MiniBurn

{
  "name": "MiniBurn",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Screenshot 2023-05-21 225632.png"
    },
    "colors": {
      "frame": "rgba(250, 158, 45, 1)",
      "tab_background_text": "rgba(255, 221, 0, 1)",
      "toolbar": "rgba(204, 43, 43, 1)",
      "bookmark_text": "rgba(255, 221, 0, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(125, 0, 0, 1)",
      "tab_line": "rgba(255, 221, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b2bd617d-c555-45fb-9aac-566c354985a6}"
    }
  }
}