Examine source code of Runic celts

{
  "theme": {
    "images": {
      "theme_frame": "ffpersona.jpg"
    },
    "colors": {
      "frame": "#6e6e6e",
      "tab_background_text": "#a1a1a1"
    }
  },
  "version": "2.0",
  "name": "Runic celts",
  "manifest_version": 2,
  "description": "A persona i created under five minutes, for testing.\nBrushes are from : <a href=\"https://outgoing.prod.mozaws.net/v1/f3f4843395b7530404146535f327959d7b3e91bf2f8fc1179413bc350580b089/http%3A//www.obsidiandawn.com/\" rel=\"nofollow\">http://www.obsidiandawn.com/</a>"
}