CSS noob having trouble recreating my old Sidebery setup in the new version.

[cheebocheebo]

Until the recent update, I was using the CSS from this person's minimalist icon setup I found on Reddit.

userChrome.css

Sidebery Stylesheet

However, it no longer works with the updated Sidebery because a few of the commands changed I guess? I don't know why and I'm not familiar with CSS to do it myself. I searched this forum and mbnuqw said they didn't document the exact changes. Does anybody know how I could either tweak the existing CSS files or recreate these visuals in the latest Sidebery version?

I have zero idea where to even begin. I'm nearly broke, but if anybody can help me, I'll make you some fanart or draw your DnD character for you.