Examine source code of Silvershine

{
  "name": "Silvershine",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "moon-mini.svg"
    },
    "colors": {
      "frame": "rgba(15, 5, 81, 1)",
      "tab_background_text": "rgba(238, 238, 238, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{615fb84c-a511-445f-ad38-8d2752c8e785}"
    }
  }
}