I could watch The Emperor’s New Groove all day, every day and never get tired.

Never noticed those bordered corners either, good job spotting them! I just pushed a fix to the stylesheet. I’m not on Github so I’m not sure this theme will be showing up on the official site. If anything I would at least wait until the native Lemmy theme was ready to share.

There is no compact version at the moment. Is the sidebar much smaller in comparison to a native theme in your browser?

Yeah it sucks that there are no free user style extensions for Safari, sorry ☹️