Request to Add Tip Sharpness, Pressure Sensitivity, and Tip Flatness Options to the Highlighter

I would like to request the addition of tip sharpness, pressure sensitivity, and tip flatness options to the highlighter tool.

With these features, the shape of the highlighter stroke could change depending on the tilt of the pen tip, and setting the tip flatness to 100% could produce a more angular, chisel-like highlighter shape rather than a rounded one.

These controls are essential for achieving more precise, realistic, and professional highlighting behavior, and they would significantly enhance the flexibility and usability of the highlighter tool.