Examine source code of A Crescent Moon

{
  "theme": {
    "images": {
      "theme_frame": "CrescentMoonH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#fafafa"
    }
  },
  "version": "2.0",
  "name": "A Crescent Moon",
  "manifest_version": 2,
  "description": "sky, moon, crescent, dark, night, moon, simple, easy browser read\n\nDesigned by MaDonna"
}