Examine source code of ACDC Rockz

{
  "theme": {
    "images": {
      "theme_frame": "My_ACDC_Header2.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#d4d4d4"
    }
  },
  "version": "2.0",
  "name": "ACDC Rockz",
  "manifest_version": 2,
  "description": "Customize your firefox with this Persona dedicated to the gods of hard rock: AC/DC!"
}