Examine source code of Raven Fire

{
  "name": "Raven Fire",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Raven Fire Bird Pencil Firefox Background 2200 500.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(122, 104, 85, 0.34)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(3, 1, 0, 0.38)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f1b0bdc3-079a-47d6-bf8a-26e13bcfece9}"
    }
  }
}