Examine source code of Framerama

{
  "name": "Framerama",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "framerama-3-w-shadw.png"
    },
    "colors": {
      "frame": "rgba(161, 161, 161, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(189, 189, 189, 0.82)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(255, 111, 0, 0.48)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 149, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8bb04d87-64d6-4b25-9f57-6665f8aaf33e}"
    }
  }
}