Examine source code of Sunset Wallper Variation

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#e812fc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sunset Wallper Variation",
  "manifest_version": 2,
  "description": "Doodley floral wallpaper pattern with pink and purple filter, like a sunset."
}