It would be very useful to have more pen size options or, even better, a slider that allows users to choose the exact line thickness when using the Pen tool. Currently, the limited preset sizes make it difficult to create detailed drawings, especially when working on diagrams or construction-related sketches where line variation is important.
As someone who regularly works with technical and architectural details, I often need to represent different types of lines—thin for guides, thicker for structure, etc.—and sometimes combine that with opacity adjustments for layering or emphasis.
Adding more control over both line thickness and transparency would make the drawing tool much more powerful and precise for professional use.
