Examine source code of DisKort

{
  "manifest_version": 2,
  "name": "DisKort",
  "version": "2.0.1",
  "description": "Custom theme for Discord",
  "icons": {
    "48": "ext.png"
  },
  "permissions": [
    "https://raw.githubusercontent.com/Er2ch/diskort/*",
    "*://discord.com/",
    "webRequest",
    "webRequestBlocking"
  ],
  "background": {
    "scripts": [
      "js/bg.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://discord.com/*"
      ],
      "js": [
        "js/inj.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7e79557e-5773-4be8-b0e2-9e35b34b692c}"
    }
  }
}