Examine source code of Winter Bird by M♥Donna

{
  "name": "Winter Bird by M♥Donna",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Winter BirdH.jpg"
    },
    "colors": {
      "frame": "rgba(205, 221, 250, 1)",
      "tab_background_text": "rgba(255, 245, 245, 1)",
      "toolbar": "rgba(182, 194, 219, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(224, 234, 255, 0.09)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 245, 245, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bf46c80b-b82e-497e-8fab-e08634f9f12c}"
    }
  }
}