Examine source code of Abundant seashells

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#8a9ea6",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "Abundant seashells",
  "manifest_version": 2,
  "description": "The amount and different kinds of seashells that wash up on shore after a storm is amazing... both pristine and broken."
}