Examine source code of wolfs rain image

{
  "theme": {
    "images": {
      "theme_frame": "oberliniewolfrain.jpg"
    },
    "colors": {
      "frame": "#40a8f7",
      "tab_background_text": "#0004ff"
    }
  },
  "version": "2.0",
  "name": "wolfs rain image",
  "manifest_version": 2,
  "description": "wolfs rain kiba anime manga wolf"
}