Examine source code of Element Contrast

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Element Contrast",
  "manifest_version": 2,
  "description": "A persona I made for some fun all credit for the logo goes to Element Skateboards but I made the footer myself. I am dissapointed there are not many more Element personas going 'round so try to make some!"
}