Examine source code of Coy Koi by MaDonna

{
  "name": "Coy Koi by MaDonna",
  "manifest_version": 2,
  "version": "7.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(219, 206, 171, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(219, 206, 171, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(219, 206, 171, 0.07)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(13, 11, 11, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{492d2488-0bad-482f-8cf6-5b34668c9b73}"
    }
  }
}