Examine source code of deep_dark_blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "dark_blue",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(16, 22, 47)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(16, 22, 47)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(54, 58, 89)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(207, 208, 113)",
      "popup": "rgb(16, 22, 47)",
      "popup_text": "rgb(232, 235, 237)",
      "tab_loading": "rgb(207, 208, 113)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{18446be1-e87f-4bde-acc7-6a03eb9ad20e}"
    }
  }
}