Examine source code of Pink is For Trees

{
  "theme": {
    "images": {
      "theme_frame": "PiFtheader.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Pink is For Trees",
  "manifest_version": 2,
  "description": "Pink is For Trees Persona for Firefox.\n\nComments: Not my favourite, but nice. Nothing much to say on this one.\n\n- Created by EternalShadow -"
}