Struggling with Organization - note box ? colors ? hashtag visual?

Hey guys,
any resources to get better clarity for my eyes to follow the flow of my thoughts?
I heavily rely on different colors, and whitespace.
Perhaps there is a way to make hashtags look a certain way or a !Note box ?

Like take this for instance:

and in Logseq, I found a plugin that I can right click for colors; but I feel like there are some aspects I don’t know how to effectively capture

Especially if I have a summary node at the end ; that combines both thoughts…

Q) is there a way to have a particular CSS for a hashtag so go #note ; and it styles everything on that block a certain way ?
I need visual help in general