brighness config

sys_tray.js

const { app, Menu, Tray   } = require('electron');
const {exec } = require('child_process');
let tray = null ;
app.whenReady().then(()=> {
    tray = new Tray('/home/roz/downloads/icon.jpeg')
    const contextMenu = Menu.buildFromTemplate([
        {label: '1%' , click(){
            exec("xbacklight -set 1");
        }} ,{label: '5%' , click(){
            exec("xbacklight -set 5");
        }} ,{label: '10%' , click(){
            exec("xbacklight -set 10");
        }} ,
    ])
    tray.setToolTip("brighness!");
    tray.setContextMenu(contextMenu);
})