Examine source code of #2a2e32 gray

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "#2a2e32 gray",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(42, 46, 50)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(42, 46, 50)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(26, 29, 33)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(129, 129, 129)",
      "popup": "rgb(42, 46, 50)",
      "popup_text": "rgb(215, 226, 239)",
      "tab_loading": "rgb(129, 129, 129)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c322c44f-5218-4f70-a6e4-8d4d5cb4bb3e}"
    }
  }
}