Examine source code of Orange-Grey Runner

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ff811d",
      "tab_background_text": "#1922d8"
    }
  },
  "version": "2.0",
  "name": "Orange-Grey Runner",
  "manifest_version": 2,
  "description": "This theme has a soft background with a runner in front for those who want something less realistic that competes less with whatever is being viewed in browser."
}