Examine source code of Speed 4

{
  "theme": {
    "images": {
      "theme_frame": "Speed4Persona.png"
    },
    "colors": {
      "frame": "#362525",
      "tab_background_text": "#121111"
    }
  },
  "version": "2.0",
  "name": "Speed 4",
  "manifest_version": 2,
  "description": "Speed 4 Persona"
}