Examine source code of LOL Face - Spring

{
  "theme": {
    "images": {
      "theme_frame": "spring-lol-face.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "LOL Face - Spring",
  "manifest_version": 2,
  "description": "Keep up your good mood by looking constantly to this insanely happy LOL face in a freshy Spring environment! Beware, though, it might be too fresh."
}