Examine source code of Cat Skulls

{
  "theme": {
    "images": {
      "theme_frame": "CSH2.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Cat Skulls",
  "manifest_version": 2,
  "description": "Millions of cats and dogs are euthanized due to overpopulation and lack of resources. Support your local animal shelters and spay/ neuter your pets!"
}