Examine source code of Rainha - sleeping cat

{
  "theme": {
    "images": {
      "theme_frame": "sleeping-cat_2.jpg"
    },
    "colors": {
      "frame": "#96806c",
      "tab_background_text": "#120a01"
    }
  },
  "version": "2.0",
  "name": "Rainha - sleeping cat",
  "manifest_version": 2,
  "description": "I work... she sleeps!"
}