Examine source code of Hummingbird Paint

{
  "theme": {
    "images": {
      "theme_frame": "HummingbirdPersonacopy.jpg"
    },
    "colors": {
      "frame": "#e07c03",
      "tab_background_text": "#b50061"
    }
  },
  "version": "2.0",
  "name": "Hummingbird Paint",
  "manifest_version": 2,
  "description": "Picture of a humming bird that I manipulated in photoshop to look as though it were painted."
}