Examine source code of Dark Blue

{
  "name": "Dark Blue",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "angryimg.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 0)",
      "tab_background_text": "rgba(184, 184, 184, 1)",
      "toolbar": "rgba(73, 75, 99, 0.5)",
      "bookmark_text": "rgba(184, 184, 184, 1)",
      "toolbar_field": "rgba(78, 86, 117, 0.5)",
      "toolbar_field_text": "rgba(184, 184, 184, 1)"
    }
  }
}