Examine source code of Dimension

{
  "theme": {
    "images": {
      "theme_frame": "Dimension_header.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#1f1f1f"
    }
  },
  "version": "2.0",
  "name": "Dimension",
  "manifest_version": 2,
  "description": "An abstract personas made with a creation from my personal gallery :\n<a href=\"https://outgoing.prod.mozaws.net/v1/c75e430172635486acac59b36d1de8d7b23c0af416b03aef75c006a55b1c4563/http%3A//elreviae.deviantart.com/gallery/\" rel=\"nofollow\">http://elreviae.deviantart.com/gallery/</a>"
}