Examine source code of wet grass2015

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#0a4505",
      "tab_background_text": "#010f02"
    }
  },
  "version": "2.0",
  "name": "wet grass2015",
  "manifest_version": 2
}