Modify CSS on the Desktop app

[andrebastosdias]

Is there a way to change the CSS of the desktop app?

I've already tried adding these snippets to the index.html, but without success.

win.on('loaded', function() {
    var code = `var style = document.createElement('style');
    style.innerHTML = '...';
    document.head.appendChild(style);`;
    win.eval(null, code);
});

document.addEventListener('DOMContentLoaded', function() {
	var elements = document.querySelectorAll('...');
	...
});