Examine source code of Nature

{
  "name": "Blue bonanza",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Screenshot 2026-06-01 at 5.53.28 PM.png"
    },
    "colors": {
      "frame": "rgba(43, 179, 47, 1)",
      "tab_background_text": "rgba(43, 194, 96, 1)",
      "toolbar": "rgba(20, 145, 99, 1)",
      "bookmark_text": "rgba(44, 184, 137, 1)",
      "toolbar_field": "rgba(10, 173, 113, 1)",
      "toolbar_field_text": "rgba(0, 138, 9, 1)",
      "tab_line": "rgba(113, 235, 94, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f65bd5aa-5fc1-4134-ba2a-3f10d21d9c16}"
    }
  }
}