Examine source code of Runescape1

{
  "theme": {
    "images": {
      "theme_frame": "GrowHerbsFFbanner.jpg"
    },
    "colors": {
      "frame": "#878278",
      "tab_background_text": "#1620ab"
    }
  },
  "version": "2.0",
  "name": "Runescape1",
  "manifest_version": 2,
  "description": "a montage of my runescape account throughout a few years. of screenshots"
}