Examine source code of Genshin Impact

{
  "name": "Genshin Impact",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "35059-utawarerumono_mask_of_truth_head.jpg"
    },
    "colors": {
      "frame": "rgba(97, 90, 189, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(19, 15, 69, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(51, 55, 97, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(9, 0, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b74964aa-23c3-4a9f-94a1-4fdb131738cd}"
    }
  }
}