Examine source code of The Lost Canvas

{
  "theme": {
    "images": {
      "theme_frame": "The_Lost_Canvas_Theme.jpg"
    },
    "colors": {
      "frame": "#c7bb37",
      "tab_background_text": "#f3f570"
    }
  },
  "version": "2.0",
  "name": "The Lost Canvas",
  "manifest_version": 2,
  "description": "The Lost Canvas Theme"
}