Examine source code of Blackhawks Chicago

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#d90404",
      "tab_background_text": "#f50000"
    }
  },
  "version": "2.0",
  "name": "Blackhawks Chicago",
  "manifest_version": 2,
  "description": "My first theme for Firefox. If this reaches 50 downloads I will make more. So I hope you enjoy this theme! And sorry the way this turned out I'm new to this."
}