Examine source code of minakuri dragon

{
  "manifest_version": 3,
  "name": "Minakuri Dragon",
  "version": "4.1",
  "description": "A simple persona with chrome background.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{aebddd7f-2483-4ed7-99b0-00e9709ec7f2}",
      "strict_min_version": "112.0"
    }
  },
  "theme": {
    "images": {
      "theme_frame": "chrome/images/header5120.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#cccccc",
      "toolbar": "#ffffff33",
      "toolbar_text": "#FFFFFF",
      "bookmark_background": "#000000",
      "bookmark_text": "#cccccc"
    }
  }
}