Examine source code of Mario Online 2 animated

{
  "name": "Mario Online 2 animated",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "02011ec8554277b8c70bf22fb192123c-ezgif.com-crop(5).gif"
    },
    "colors": {
      "frame": "rgba(11, 24, 69, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 50, 168, 0.32)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(122, 2, 62, 0.41)",
      "toolbar_field_text": "rgba(0, 255, 251, 1)",
      "tab_line": "rgba(207, 189, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{99567df3-5db7-4303-a2cf-427485384dd1}"
    }
  }
}