Examine source code of a7x red death bat

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "a7x red death bat",
  "manifest_version": 2,
  "description": "Simple red Avenged Sevenfold theme, with red Deathbat signature logo and 'Avenged Sevenfold'. Deathbat credits to peteroxmysox220493 on tumblr"
}