Examine source code of Dock

{
  "theme": {
    "images": {
      "theme_frame": "personas_b2r_header-Dock.png"
    },
    "colors": {
      "frame": "#00ff00",
      "tab_background_text": "#00ff00"
    }
  },
  "version": "2.0",
  "name": "Dock",
  "manifest_version": 2
}