Try https://b.piefed.social/ instead! Log in with the same username and password as piefed.social.
It works best on a phone / tablet but on a desktop it’s fine too once you switch to compact mode.
It can be installed as a PWA.
There are also lots of themes you can try at https://piefed.social/user/settings. Here are some screenshots of them - https://join.piefed.social/screenshots/
Thank you for sharing my PieFed/Lemmy UI! Btw, if you’re in the progress of migrating from Lemmy to PieFed, you can login to both Lemmy and PieFed simultaneously via blorpblorp.xyz. Please don’t hesitate to reach out to me with bug reports or feature requests. The best way to report those is GitHub, but I also read PieFed/Lemmy comments.
Thank you for your continuous work on Blorpblorp!