Examine source code of gd-smooth

{
  "name": "gd-smooth",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "400x200.gif"
    },
    "colors": {
      "frame": "rgba(3, 155, 229, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(61, 187, 255, 1)",
      "bookmark_text": "rgba(232, 232, 232, 1)",
      "toolbar_field": "rgba(240, 250, 255, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}