Examine source code of Daymap Dark Theme

{
  "manifest_version": 2,
  "name": "Daymap Dark Theme",
  "version": "1.0.5.2",
  "description": "Adds a dark theme to the LMS DayMap used by South Australian public schools.",
  "icons": {
    "16": "DDT_Icons/DDT_16px.png",
    "32": "DDT_Icons/DDT_32px.png",
    "48": "DDT_Icons/DDT_48px.png",
    "64": "DDT_Icons/DDT_64px.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.sa.edu.au/*ay*ap/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "author": "Yuehan Xia and Gabriel Csizmadia",
  "short_name": "DDT"
}