Examine source code of Red Black Plaid

{
  "name": "Red Black Plaid",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "rednblackplaidH.jpg"
    },
    "colors": {
      "frame": "rgba(186, 15, 15, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(186, 15, 15, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(186, 15, 15, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{062b8d2d-73c2-4628-a41b-f8f63ae1dd13}"
    }
  }
}