Examine source code of Abstracted Angel

{
  "theme": {
    "images": {
      "theme_frame": "AbstractedAngel.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#fcfcfc"
    }
  },
  "version": "2.0",
  "name": "Abstracted Angel",
  "manifest_version": 2,
  "description": "Abstracted Angel Persona for Firefox.\n'Turn your Browser into an Angel\"\n\nComments: My favourite one so far, i put a lot of effort into this, hope you all like it.\n\n- Persona by EternalShadow -"
}