Examine source code of Like Black on White FT

{
  "name": "Like Black on White FT",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "LikeBlackonWhiteH.jpg"
    },
    "colors": {
      "frame": "rgba(183, 184, 189, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(182, 183, 189, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(182, 183, 189, 0.05)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9922defc-667c-4c3e-9de7-0f44005ff2dc}"
    }
  }
}