Examine source code of Agence Siluko 2

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_Siluko2.png"
    },
    "colors": {
      "frame": "#ada3a3",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Agence Siluko 2",
  "manifest_version": 2,
  "description": "\"Header Persona Siluko\" pour Firefox en ayant deux barres personnelles (barre d'outils Developer et barre personnelle...)."
}