Examine source code of Calm Editorial Paper Flow

{
  "manifest_version": 2,
  "name": "Calm Editorial Paper Flow",
  "version": "1.0",
  "description": "A calm editorial theme guided by paper flow and natural reading rhythm. Soft tones and balanced spacing create a relaxed browsing experience.",
  "theme": {
    "colors": {
      "frame": "#efe9df",
      "tab_background_text": "#2a2a2a",
      "toolbar": "#f7f3ec",
      "toolbar_text": "#2a2a2a",
      "toolbar_field": "#ffffff",
      "toolbar_field_text": "#2a2a2a",
      "tab_line": "#c1c8cf"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{efad7fff-ed24-40f4-9d98-fb1cff688dee}"
    }
  }
}