Examine source code of DigitalBlackHole

{
  "theme": {
    "images": {
      "theme_frame": "BlackHoleTop.jpg"
    },
    "colors": {
      "frame": "#0026fa",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "DigitalBlackHole",
  "manifest_version": 2,
  "description": "Just a Black Hole theme to ID me for Students. It's kinda cool, so I thought that I would share."
}