Examine source code of Flat Dark Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Blue",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(4, 21, 30)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(4, 21, 30)",
      "tab_background_text": "rgb(172, 193, 200)",
      "toolbar_field": "rgb(4, 21, 30)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(16, 109, 136, 0.32)",
      "popup": "rgb(4, 21, 30)",
      "popup_text": "rgb(255, 255, 255)",
      "icons": "rgba(255, 255, 255, 0.8)",
      "ntp_background": "rgb(4, 21, 30)",
      "ntp_text": "rgba(255, 255, 255, 0.32)",
      "tab_loading": "rgb(4, 21, 30)",
      "tab_selected": "rgba(16, 109, 136, 0.32)",
      "toolbar_bottom_separator": "rgb(4, 21, 30)"
    }
  }
}