Examine source code of Just Red

{
  "theme": {
    "images": {
      "theme_frame": "Red_Header.PNG"
    },
    "colors": {
      "frame": "#808080",
      "tab_background_text": "#dddddd"
    }
  },
  "version": "2.0",
  "name": "Just Red",
  "manifest_version": 2,
  "description": "A better red might be possible but this looks pretty good in my laptop. Would like improvements."
}