Examine source code of Dexter Light

{
  "theme": {
    "images": {
      "theme_frame": "dexter_firefox_header.jpg"
    },
    "colors": {
      "frame": "#7d1919",
      "tab_background_text": "#bac"
    }
  },
  "version": "2.0",
  "name": "Dexter Light",
  "manifest_version": 2,
  "description": "Not too busy Persona inspired by the show Dexter. Keep an eye out for frequent updates."
}