Examine source code of Sky Spirits

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#152843",
      "tab_background_text": "#FFFF66"
    }
  },
  "version": "2.0",
  "name": "Sky Spirits",
  "manifest_version": 2,
  "description": "Theme Designed by <b>candelora ©</b>\n❤Copyright Original Art Paint by <b>Laurel Burch</b>❤\n\nTAGS:\nbirds,ducks,beak,air,cute,sweet,fabric,canvas,fantasy,\nmagical,candelora,firefox"
}