Yes, earlier this year, we hosted a webinar dedicated to UX/UI tips. However, design itself evolves, and secondly, there's nothing better than having both front-end and back-end developers together in one place. Please leave a comment if you can provide another hint that we might have missed!
Here’s the link to our blog (+video):
https://flespi.com/blog/flespi-conf-ui-workshop-features-tricks-apps