Examine source code of Fading Rose

{
  "name": "Fading Rose",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "fading-rose-4.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(3, 3, 3, 1)",
      "toolbar": "rgba(196, 196, 196, 0.54)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(146, 209, 203, 0.42)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 0, 0, 0.54)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b23202a0-7dd5-4aea-b7a2-cefd0c5fda98}"
    }
  }
}