I dunno why i didn't think to include custom brushes earlier.
Program: Clip Studio Paint
This includes the source file (which has several folders for various 'settings,' such as hiding/showing outfits, expressions, and body types) as well as two custom lace brushes I had made by hand.
To add the brushes to your program:
The easiest way is to open windows explorer, find the brush file, and with CSP open, drag it into the tool category you want. I personally put them both in the 'Decoration' brush within the 'Clothing' category.
Additionally, I likely will go through and grab all my custom brushes I've made and assemble them into a separate post soon.