Libreoffice comes with a few different themes and icon sets. Have you tried them out?

It doesn't matter. Most people go with the defaults. If your default is ugly, your app is uggly.

	▲	ricardonunez 2 days ago \| parent \| next [-]
		Also the themes and the themes are not that great and not sharp looking, specially in dark mode. I’m using it out of principle but the design needs an overhaul. I was considering doing the design using some open source icon set but time is limited.
	▲	kylebenzle 2 days ago \| parent \| prev [-]
		[dead]