Examine source code of SubDevo Black for Menu Bar users

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "SubDevo Black for Menu Bar users",
  "manifest_version": 2,
  "description": "Best if Menu Bar is visible. Not so good if not...\nIf not using the Menu Bar, use <a rel=\"nofollow\" href=\"https://addons.mozilla.org/en-US/firefox/addon/subdevo-black-not-for-menu/\">THIS</a> version.\nJust grab both versions and use either one as needed..."
}