Examine source code of Super Moon

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#0f0b03",
      "tab_background_text": "#f2f2ea"
    }
  },
  "version": "2.0",
  "name": "Super Moon",
  "manifest_version": 2
}