Examine source code of Blizz Theme V3

{
  "name": "Blizz Theme V3",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Blizz.png"
    },
    "colors": {
      "frame": "rgba(0, 14, 14, 1)",
      "tab_background_text": "rgba(144, 255, 251, 1)",
      "toolbar": "rgba(64, 64, 64, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(194, 194, 194, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(144, 255, 251, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{eea4e699-9f81-4d55-bb06-1902dd5117ee}"
    }
  }
}