Examine source code of Epic Box

{
  "theme": {
    "images": {
      "theme_frame": "EpicBoxBitches.jpg"
    },
    "colors": {
      "frame": "#0a0808",
      "tab_background_text": "#090812"
    }
  },
  "version": "2.0",
  "name": "Epic Box",
  "manifest_version": 2,
  "description": "Epic Box is Epic."
}