Examine source code of Impressionist painting

{
  "name": "Impressionist painting",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "birmingham-museums-trust-nbneQlI2M1A-unsplash(1)(3)(1).jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(242, 126, 126, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{86c18ae0-1f4b-4bfb-ae7c-929386349a10}"
    }
  }
}