Examine source code of N88

{
  "name": "Showcase",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "1000181690.jpg"
    },
    "colors": {
      "frame": "rgba(240, 209, 183, 1)",
      "tab_background_text": "rgba(102, 41, 41, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{09398783-ca79-4e66-832f-d818b7a8607b}"
    }
  }
}