Examine source code of Black and Tan

{
  "theme": {
    "images": {
      "theme_frame": "duboisPersonnaheader.jpg"
    },
    "colors": {
      "frame": "#050505",
      "tab_background_text": "#d4d1ae"
    }
  },
  "version": "2.0",
  "name": "Black and Tan",
  "manifest_version": 2,
  "description": "Just had to be readable."
}