Examine source code of DC Cherry Blossoms

{
  "theme": {
    "images": {
      "theme_frame": "CherryBlossomsHeader.jpg"
    },
    "colors": {
      "frame": "#f7f4f4",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "DC Cherry Blossoms",
  "manifest_version": 2,
  "description": "Washington DC Cherry Blossoms"
}