Electron linux reproduce titleBarOverlay color

main.js

import { app, BrowserWindow } from 'electron';

function createWindow() {
  const win = new BrowserWindow({
    width: 1200,
    height: 800,
    titleBarStyle: 'hidden',
    titleBarOverlay: {
      height: 40,
      color: 'rgba(0,0,0,0)', // color: 'rgba(1,0,0,0)', works!
    },
  });

  win.loadFile('index.html');
}

app.whenReady().then(createWindow);