Examine source code of Voltron on black

{
  "theme": {
    "images": {
      "theme_frame": "voltronblack2500.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Voltron on black",
  "manifest_version": 2,
  "description": "Voltron - Defender of the Universe is a squeal a 1980's American animated television series."
}