Examine source code of Pennywise (IT)

{
  "name": "Pennywise (IT)",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "oie_0YYcODPUzPzc.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0.43)",
      "bookmark_text": "rgba(255, 0, 0, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.28)",
      "toolbar_field_text": "rgba(255, 0, 0, 1)",
      "tab_line": "rgba(255, 0, 0, 0.32)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4af265d5-b097-43c3-af4c-abc1c515db1d}"
    }
  }
}