Examine source code of Leboncoin Expert

{
    "manifest_version": 2,
    "name": "LBC Stats",
    "version": "1.0",
    "description": "LBC Stats",
    "icons":{
        //"48": "icons/dark_messenger.png"
    },
    "content_scripts": [
        {
            "matches": ["https://www.leboncoin.fr/recherche/*"],
            "css": ["styles.css"],
            "js":["jquery-3.3.1.min.js", "Chart.min.js", "main.js"]
        }
    ]
}