Examine source code of Moon over the Gate 2

{
  "theme": {
    "images": {
      "theme_frame": "GGmoon.jpg"
    },
    "colors": {
      "frame": "#070a54",
      "tab_background_text": "#f09d03"
    }
  },
  "version": "2.0",
  "name": "Moon over the Gate 2",
  "manifest_version": 2,
  "description": "Golden Gate Bridge at night with the moon overhead.  Taken from the north and east side of the bridge"
}