Examine source code of Frosting Winter

{
  "name": "Frosting Winter",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "FrostingWinterHCustom.jpg"
    },
    "colors": {
      "frame": "rgba(39, 53, 36, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(41, 56, 38, 0)",
      "bookmark_text": "rgba(255, 250, 250, 1)",
      "toolbar_field": "rgba(41, 56, 38, 0.05)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{407df6d0-5e8b-4e0b-86de-45165abc6f7e}"
    }
  }
}