Examine source code of Gradient Red

{
  "theme": {
    "images": {
      "theme_frame": "brightred.JPG"
    },
    "colors": {
      "frame": "#ff8400",
      "tab_background_text": "#b3b3b3"
    }
  },
  "version": "2.0",
  "name": "Gradient Red",
  "manifest_version": 2,
  "description": "Gradient red. Coming soon, black, white/grey, dk blu, neons, and magenta."
}