Examine source code of iunno...

{
  "theme": {
    "images": {
      "theme_frame": "Imfalling.jpg"
    },
    "colors": {
      "frame": "#6b6b6b",
      "tab_background_text": "#cfcfcf"
    }
  },
  "version": "2.0",
  "name": "iunno...",
  "manifest_version": 2,
  "description": "PLEASE READ: Obsidian Dawn Made the brushes i used in this persona. If you would like to use some of them yourself, please visit <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/f3f4843395b7530404146535f327959d7b3e91bf2f8fc1179413bc350580b089/http%3A//www.obsidiandawn.com/\">http://www.obsidiandawn.com/</a>"
}