Examine source code of Parallel starry sky

{
  "theme": {
    "images": {
      "theme_frame": "3.jpg"
    },
    "colors": {
      "frame": "#040082",
      "tab_background_text": "#0003bf"
    }
  },
  "version": "2.0",
  "name": "Parallel starry sky",
  "manifest_version": 2,
  "description": "........\nStarry sky"
}