manifest.json

{
   "manifest_version": 3,
   "name": "historymap",
   "description": "history map with manifest v3",
   "version": "0.1",
   "action": {
     "default_icon": "assets/icon-history-map2-128px.png",
     "default_title": "Click to open panel"
   },
   "content_scripts": [
     {
       "matches": ["<all_urls>"],
       "js": [
          "./lib/rangy/rangy-core.js",
          "./lib/rangy/rangy-classapplier.js",
          "./lib/rangy/rangy-highlighter.js",
          "./lib/rangy/rangy-serializer.js",
          "./lib/rangy/rangy-selectionsaverestore.js",
          "./src/content-script/highlight.js",
          "./src/content-script/content-script-controller.js",
          "./src/content-script/content-script.js"
        ],
        "css": [
          "src/content-script/content.css"
        ]
     }
   ],
   "web_accessible_resources": [
    {
      "resources": ["assets/icons/chat-square-text.svg"],
      "matches": ["<all_urls>"]
    }
   ],
   "background": {
     "service_worker": "./src/background/background.js",
     "type": "module"
   },
   "side_panel": {
     "default_path": "./src/side-panel/sidePanel.html"
   },
   "permissions": ["tabs","storage","scripting","sidePanel","history","webNavigation", "contextMenus"],
   "icons": {
      "128": "./assets/icon-history-map2-128px.png"
   }
 }