Examine source code of my rainbows 2

{
  "theme": {
    "images": {
      "theme_frame": "enrainbow2.jpg"
    },
    "colors": {
      "frame": "#a8dbf0",
      "tab_background_text": "#0f0e0e"
    }
  },
  "version": "2.0",
  "name": "my rainbows 2",
  "manifest_version": 2,
  "description": "Rainbow over Potala, Tibet."
}