In "Annotate line" tool, the "Start" and "End" drop-down menus should show the actual shapes, not description

The "Annotate line" tool allows us to select different shapes as the "start" and "end". This is fantastic.

However, there is a hitch: We have to read the description of all shapes, and select the shape!

Only 4 shapes are included at present (None, Open Arrow, Segment, Square), but soon a lot more will be added (according to Pablo). When the list becomes large, it would be very tedious to read through the entire list and pick a shape.

As more complex shapes are added, it would not be easy to even describe them properly.

It would be far easier if the drop-down lists show the actual shape as icons.

LibreOffice offers 30+ shapes using only icons (no description at all), and it is extremely efficient to pick the EXACT shape we want.

Just to illustrate the point, LibreOffice has 10+ varieties of "triangular arrowheads". It would be impossible to just describe each shape. The user must be able to see them before he can make a choice!