Examine source code of White&Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "White&Blue",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(255, 255, 255)",
      "toolbar_text": "rgb(13, 0, 3)",
      "frame": "rgb(159, 200, 224)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(142, 179, 201)",
      "popup_text": "rgb(247, 247, 247)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5c8a642b-93b3-4c1b-910f-ef01fed5c6ea}"
    }
  }
}