Examine source code of Ultima Abstracticus

{
  "theme": {
    "images": {
      "theme_frame": "Ultimaabstracticuspersonaheader.png"
    },
    "colors": {
      "frame": "#84a1ad",
      "tab_background_text": "#84a1ad"
    }
  },
  "version": "2.0",
  "name": "Ultima Abstracticus",
  "manifest_version": 2,
  "description": "This is my impression of what raw confusion looks like"
}