Examine source code of GhostTron

{
  "name": "GhostTron",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "IMG_0016.jpg"
    },
    "colors": {
      "frame": "rgba(0, 81, 255, 1)",
      "tab_background_text": "rgba(75, 97, 196, 1)",
      "toolbar": "rgba(212, 205, 205, 1)",
      "bookmark_text": "rgba(230, 230, 230, 1)",
      "toolbar_field": "rgba(242, 215, 215, 1)",
      "toolbar_field_text": "rgba(240, 226, 226, 1)"
    }
  }
}