Examine source code of Under the Ocean 1

{
  "theme": {
    "images": {
      "theme_frame": "undertheocean_2_header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Under the Ocean 1",
  "manifest_version": 2,
  "description": "I really love the blue and purple in this one.  It really feels like you could be under waves looking up to the sky."
}