Examine source code of HardwarePros

{
  "name": "HardwarePros",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "hardwarepros-firefox.jpg"
    },
    "colors": {
      "frame": "rgba(24, 24, 27, 1)",
      "tab_background_text": "rgba(250, 250, 250, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{275d3b17-30d7-4c8c-834f-b4c72c68b831}"
    }
  }
}