Examine source code of PenguinLove_Blue

{
  "theme": {
    "images": {
      "theme_frame": "bluepenguins_web.jpg"
    },
    "colors": {
      "frame": "#1e4187",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "PenguinLove_Blue",
  "manifest_version": 2,
  "description": "I love penguins. So I made this and figured I would share it with any other penguin lovers. Enjoy!\n(Penguin design is my own.)"
}