… and happen to be a Beta Tester
The article explains a bit how it works and then I would recommend you just go to muro and try it out!
Personally, I haven't come across that way of combining a brush and type tool to create images from text, text-based imagery
Here is an example by $mudimba
drawing a portrait in muro using the Text Brush, which you can also enjoy via Redraw
Go and try it out
If you do try i, I would love to see your results
Even if they may not be as pretty at first, you can still link me to sta.sh items. I am curious to see how people will use this awesome new tool