Examine source code of Cloudy stars anim

{
  "name": "Cloudy stars",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Vídeo sin título ‐ Hecho con Clipchamp1(1).gif"
    },
    "colors": {
      "frame": "rgba(0, 41, 59, 1)",
      "tab_background_text": "rgba(120, 246, 255, 1)",
      "toolbar": "rgba(167, 180, 184, 1)",
      "bookmark_text": "rgba(1, 84, 87, 1)",
      "toolbar_field": "rgba(253, 255, 204, 1)",
      "toolbar_field_text": "rgba(2, 49, 130, 1)",
      "tab_line": "rgba(3, 247, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{125b50ed-d59a-47d2-851c-1f12d517e0f8}"
    }
  }
}