Examine source code of Social Network Theme

{
  "name": "Social Network Theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Social-network-icon.png"
    },
    "colors": {
      "frame": "rgba(118, 123, 135, 1)",
      "tab_background_text": "rgba(61, 39, 39, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a8c00c8a-cceb-4916-9454-63657f7c9753}"
    }
  }
}