Examine source code of Midnight's Forest

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#362121",
      "tab_background_text": "#c79ced"
    }
  },
  "version": "2.0",
  "name": "Midnight's Forest",
  "manifest_version": 2,
  "description": "What the forest looks like in a brightly lit night (with a blue hue to it)."
}