Examine source code of moon at sea

{
  "theme": {
    "images": {
      "theme_frame": "lua1.jpg"
    },
    "colors": {
      "frame": "#17171a",
      "tab_background_text": "#bfcaf2"
    }
  },
  "version": "2.0",
  "name": "moon at sea",
  "manifest_version": 2,
  "description": "Moon at sea!"
}