Examine source code of One bit2

{
  "theme": {
    "images": {
      "theme_frame": "sliceofoutthere-header2a.jpg"
    },
    "colors": {
      "frame": "#eb8c44",
      "tab_background_text": "#d45d5d"
    }
  },
  "version": "2.0",
  "name": "One bit2",
  "manifest_version": 2
}