Examine source code of PurPel

{
  "theme": {
    "images": {
      "theme_frame": "01165_galacticskip_2560x1600.jpg"
    },
    "colors": {
      "frame": "#121111",
      "tab_background_text": "#0d0c0c"
    }
  },
  "version": "2.0",
  "name": "PurPel",
  "manifest_version": 2,
  "description": "purple for the desktop, drink to brim"
}