Examine source code of personal light theme

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "light switch",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(236, 242, 248)",
      "toolbar_text": "rgb(50, 64, 97)",
      "frame": "rgb(166, 193, 219)",
      "tab_background_text": "rgb(55, 62, 106)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(50, 64, 97)",
      "tab_line": "rgb(207, 211, 239)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(55, 62, 106)",
      "tab_loading": "rgb(207, 211, 239)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9abf817d-fcb7-40a9-891b-4e4389765832}"
    }
  }
}