Turbo mode (shift+ Green Flag) Space bar cycles between silhouettes. You can use "pen" variable slider to set the smallest size of the colored dots. Hit Green Flag again to see rendering.
All credit and glory to scrappymammy. I just took her silhouettes and generated a new randomized color coding. You can see her fabulous original project here: Random Art Generator https://scratch.mit.edu/projects/228754581/
