Examine source code of Blue Broken Glass

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#0372ad",
      "tab_background_text": "#fafafa"
    }
  },
  "version": "2.0",
  "name": "Blue Broken Glass",
  "manifest_version": 2,
  "description": "A beautiful blue theme using broken blue glass as the main subject. It will enhance your browser for a long time and everyone will want a copy."
}