manifest.json

{
  "name": "rrIssues",
  "version": "1.0",
  "description": "The first extension that I made.",
  "options_page": "options.html",
  "background": {
    "page": "background.html"
  },
  "permissions": [
    "http://*.github.com/",
    "https://*.github.com/",
    "notifications"
  ],
  "web_accessible_resources": [
    "images/trafficlight_green.png",
    "images/trafficlight_red.png",
    "images/trafficlight_yellow.png",
    "images/trafficlight_blue.png",
    "images/exclamation_blue.png",
    "images/exclamation_yellow.png",
    "images/exclamation_green.png",
    "images/exclamation_red.png",
    "images/calendar_blue.png",
    "images/calendar_green.png",
    "images/calendar_yellow.png",
    "images/calendar_red.png",
    "images/tag_blue.png",
    "images/tag_green.png",
    "images/tag_yellow.png",
    "images/tag_red.png"
  ],
  "content_scripts": [
    {
      "matches": ["https://github.com/robots.txt*"],
      "js": ["oauth2/oauth2_inject.js"],
      "run_at": "document_start"
    }
  ]
}