Examine source code of Red Abstact

{
  "theme": {
    "images": {
      "theme_frame": "RC-persona-header-4.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Red Abstact",
  "manifest_version": 2,
  "description": "An abstract I made with Photoshop. I added an overlay and lowered the opacity so the text would show up and be easy on the eyes.\n\nEnjoy!!!"
}