Examine source code of Marilleva

{
  "theme": {
    "images": {
      "theme_frame": "MarillevaH.jpg"
    },
    "colors": {
      "frame": "#f2e450",
      "tab_background_text": "#378ced"
    }
  },
  "version": "2.0",
  "name": "Marilleva",
  "manifest_version": 2,
  "description": "Marilleva 1400"
}