Examine source code of DarkBlue and simple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "DarkBlue and simple",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(11, 46, 86)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(11, 46, 86)",
      "tab_background_text": "rgb(220, 220, 220)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(215, 215, 215)",
      "tab_line": "rgb(0, 112, 235)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(26, 26, 26)",
      "button_background_active": "rgb(20, 75, 138)",
      "icons_attention": "rgb(255, 255, 255)",
      "tab_loading": "rgb(0, 112, 235)"
    }
  }
}