Examine source code of Guitars by Dark_Stone

{
  "theme": {
    "images": {
      "theme_frame": "head.jpg"
    },
    "colors": {
      "frame": "#00c4ff",
      "tab_background_text": "#00c4ff"
    }
  },
  "version": "2.0",
  "name": "Guitars by Dark_Stone",
  "manifest_version": 2,
  "description": "My first creation for Mozilla and for users. Do not judge strictly. The basis of the most famous took three firms for the production of guitars. (In my opinion)"
}