Examine source code of Green Cottagecore

{
  "name": "Green Cottagecore",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "bf4f2a22ad5a9484a71aabdaff26e093.jpg"
    },
    "colors": {
      "frame": "rgba(143, 189, 140, 1)",
      "tab_background_text": "rgba(56, 66, 50, 1)",
      "toolbar": "rgba(137, 212, 136, 1)",
      "bookmark_text": "rgba(255, 245, 245, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(20, 46, 18, 1)",
      "tab_line": "rgba(63, 71, 60, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{228f728a-92d4-4632-9a2f-ab000d2f8290}"
    }
  }
}