Examine source code of EL&RA2

{
  "theme": {
    "images": {
      "theme_frame": "hlavickafirefox.jpg"
    },
    "colors": {
      "frame": "#5e0000",
      "tab_background_text": "#9c9c9c"
    }
  },
  "version": "2.0",
  "name": "EL&RA2",
  "manifest_version": 2,
  "description": "Milujem ťa môj anjelik.... tak túto tému som vytvoril pre teba =D"
}