Examine source code of Old ChromeOS

{
  "name": "Old ChromeOS",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "VirtualBox_cróme_31_05_2025.png"
    },
    "colors": {
      "frame": "rgba(151, 176, 226, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(253, 253, 253, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6eebf936-630e-4819-8b36-748358fb5ff5}"
    }
  }
}