Examine source code of Fall Blue

{
  "theme": {
    "images": {
      "theme_frame": "personal-frog1.jpg"
    },
    "colors": {
      "frame": "#1dab07",
      "tab_background_text": "#111dbf"
    }
  },
  "version": "2.0",
  "name": "Fall Blue",
  "manifest_version": 2,
  "description": "muted fall scenery"
}