I assume this hasn’t been posted here yet, but this was @Piotr’s code for making text in editor mode thicker to make the font look more like in preview mode (posted in this thread: Font is thinner in editor mode than in preview mode. How do I change that?)
.cm-s-obsidian .CodeMirror-line * {
-webkit-font-smoothing: auto;
}
It’s tiny, but it was really one of the game changers for me lol, and lead me to find other clutter-free CSS hacks. All credit goes to @Piotr (unless this hack is way too simple to be “owned” by someone).
The code for the reverse (make preview text thinner) is also found in the same linked thread (as mentioned here before).