...could them be a bit larger? When I set max scale (500%), on A4 300 dpi and line 0,2 pt arrowheads are too small. I often make technical diagrams with thin dimension lines and arrows, and for example in Corel Draw I can set bigger arrows. So far, I have made such drawings in Affinity with the help of arrow assets (constraint groups), but the option with the ends of the line is much more convenient.