Stencilia Font required(Put it in the same folder as the .scad file): https://www.dafont.com/stencilia.font
There is support for text and a SVG being cut out of the patch, both an SVG and text together takes a while to render but is pretty cool.
The part of the SVG that you want cutting out should be black, I've provided an example SVG.
There is also a seprate file that allows adding multiple SVGs, unsurprisingly this take even longer to render.
If you like this check out my other OpenSCAD designs.
The author remixed this model.
Customizable Text and SVGs