Examine source code of Dodger black

{
  "name": "Dodger black",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "dodger 8.jpg"
    },
    "colors": {
      "frame": "rgba(230, 230, 230, 1)",
      "tab_background_text": "rgba(232, 234, 247, 0.94)",
      "toolbar": "rgba(169, 180, 217, 0.52)",
      "toolbar_field": "rgba(217, 227, 247, 1)"
    }
  }
}