Examine source code of Rexel Theme

{
  "theme": {
    "images": {
      "theme_frame": "Benoit_Verdier_Header2.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#020624"
    }
  },
  "version": "2.0",
  "name": "Rexel Theme",
  "manifest_version": 2,
  "description": "Thème Rexel créé par Benoit Verdier.\n\nCe thème est optimisé pour Firefox 6 sous Windows XP.\n\n<^_^>\n\nRexel Theme designed by Benoit Verdier.\n\nThis Persona is optimised for Firefox 6 under Win XP."
}