The latest Sketch update is now out and it's a massive update: Most notable is a Liquid Glass redesign but there's so much more to it. First though, let's talk Liquid Glass:

It's not obvious how to adapt Liquid Glass in a UI-heavy app like Sketch where you want all the controls visible. You also want to limit transparency because having your content shine through behind your UI might look pretty when they're beautiful photos, but UI shining through other UI is not...

https://www.sketch.com/blog/a-tour-of-copenhagen/

A guided tour of Sketch Copenhagen — exploring an all-new UI design · Sketch Blog

Our Copenhagen release features an all-new design for macOS Tahoe — here’s how we’ve balanced a fresh look with functionality.

Sketch
@pieteromvlee when Liquid Glass was introduced I wondered how you guys could possibly pull off a way for Sketch to use it without the UI becoming too distracting... but you guys really knocked out of the park. Amazing work.
@Hrellir Thanks! Glad to hear you like it. It wasn’t designed for dense UI so we followed the spirit, not the letter in many places 😅