When choosing a preset, it would be useful if presets remembered what thickness you liked for that pen and if you had shape recognition enabled.
Use case: I'm studying on a PDF book; to underline and take notes I'm using:
- A yellow marker with shape recognition enabled to draw a perfect line on the text
- A red thick pen with shape recognition enabled to further underline
- A black thin pen and a red thin pen without shape recognition to write notes.

With the current implementation, I have to choose the color, then choose the thickness, then enable shape recognition = Too many taps.
With this idea implemented, these features would be one tap away.