Examine source code of Peace rainbow

{
  "theme": {
    "images": {
      "theme_frame": "Peace.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#c7feff"
    }
  },
  "version": "2.0",
  "name": "Peace rainbow",
  "manifest_version": 2,
  "description": "paint picture rain colours yellow red blue black nice smile"
}