Examine source code of Lines simple

{
  "theme": {
    "images": {
      "theme_frame": "eaxdhbzhgoneebmi.png"
    },
    "colors": {
      "frame": "#030730",
      "tab_background_text": "#080c2e"
    }
  },
  "version": "2.0",
  "name": "Lines simple",
  "manifest_version": 2,
  "description": "Created in sumo paint."
}