Examine source code of Sailor Moon Background

{
  "name": "Sailor Moon Background",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Sailor Moon Scenery (4).jpg"
    },
    "colors": {
      "frame": "rgba(229, 202, 235, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(181, 120, 184, 0.81)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(209, 255, 253, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6f444e37-0dae-4235-8d05-ef77580160c5}"
    }
  }
}