Examine source code of Get Secure Tech

{
  "name": "Thorin Oakenshield HD Theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "wallpaperflare.com_wallpaper (12).jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(42, 161, 125, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(50, 120, 20, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f26b1dd9-d2f8-4afe-b3fa-f7fa9a6f515b}"
    }
  }
}