Examine source code of Red Alert Warning

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Red Alert",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(111, 4, 9)",
      "toolbar_text": "rgb(255, 250, 251)",
      "frame": "rgb(30, 31, 41)",
      "tab_background_text": "rgb(232, 232, 232)",
      "toolbar_field": "rgb(30, 31, 41)",
      "toolbar_field_text": "rgb(247, 214, 214)",
      "tab_line": "rgb(111, 4, 9)",
      "popup": "rgb(30, 31, 41)",
      "popup_text": "rgb(255, 255, 255)",
      "ntp_background": "rgb(101, 102, 12)",
      "popup_border": "rgb(30, 31, 41)",
      "toolbar_bottom_separator": "rgb(111, 4, 9)",
      "toolbar_field_highlight": "rgb(127, 4, 9)",
      "tab_loading": "rgb(111, 4, 9)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{54f308cb-c364-442c-8df3-89810b20fea1}"
    }
  }
}