Examine source code of Colored Umbrellas

{
  "theme": {
    "images": {
      "theme_frame": "Umbrellasheader.jpg"
    },
    "colors": {
      "frame": "#940a0a",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "Colored Umbrellas",
  "manifest_version": 2,
  "description": "umbrella rain colors summer spring"
}