const customTitlebar = require("custom-electron-titlebar"); module.exports = () => { const bar = new customTitlebar.Titlebar({ backgroundColor: customTitlebar.Color.fromHex("#050505"), minimizable: false, maximizable: false, unfocusEffect: true, }); try { bar.updateMenu(null); } catch (e) { //will always throw type error - null isn't menu, but it works } let container = document.querySelector('#container'); container.style.width = '100%'; container.style.position = 'fixed'; container.style.border = 'unset'; }