Examine source code of Simple and Shiny

{
  "theme": {
    "images": {
      "theme_frame": "header2.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Simple and Shiny",
  "manifest_version": 2,
  "description": "Just like the name implies, this skin is simple and shiny. Designed for the people who like Firefox's custom theme, but want to make it a little more \"shiny\"."
}