Examine source code of Ligth Circle

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Ligth Circle",
  "manifest_version": 2,
  "description": "This theme is based in one my wallpapers. The predominant colors are: blue, pink and white. The primary objects are circles. The effects are blur and gradient."
}