Examine source code of Half-life animated theme

{
  "name": "Half-life animated theme",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "half-life.gif"
    },
    "colors": {
      "frame": "rgba(251, 126, 20, 1)",
      "tab_background_text": "rgba(251, 126, 20, 1)",
      "toolbar": "rgba(251, 126, 20, 0.4)",
      "toolbar_field": "rgba(61, 43, 33, 1)",
      "toolbar_field_text": "rgba(251, 126, 20, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9de3be9a-e8d9-43b9-a5f5-a466342ac900}"
    }
  }
}