Examine source code of Glass

{
  "name": "Glass",
  "manifest_version": 2,
  "version": "1.1resigned1",
  "theme": {
    "images": {
      "theme_frame": "firefox.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 0)",
      "tab_background_text": "rgba(115, 255, 64, 0.88)",
      "toolbar": "rgba(255, 255, 255, 0)",
      "bookmark_text": "rgba(115, 255, 64, 0.88)",
      "toolbar_field": "rgba(239, 255, 64, 0.65)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{426ac494-9262-4e72-8593-19d942adcaf5}"
    }
  }
}