Harpoon stealth is not pointy.

[iago-lito]

#import "@preview/cetz:0.5.2"
#cetz.canvas({
  import cetz.draw: *
  let s = (symbol: "stealth", stroke: red, fill: blue)
  line((0, .3), (1, .3), mark: s)
  line((0, 0), (1, 0), mark: (harpoon: true, ..s))
})

It looks like the marker stroke line becomes.. unclosed at the tip?

[iago-lito]

I guess this is just an unfortunate consequence of the following "pointiness unstability".. ?

line((0, 0), (1, 0), (0, 0.6), close: true, stroke: blue)
line((0, -1), (1, -1), (0, 0.5 - 1), close: true, stroke: red)

[iago-lito]

Hm, making progress ^ ^ https://typst.app/docs/reference/visualize/stroke#constructor-miter-limit.

[iago-lito]

Workaround in the meantime: set mark: (stroke: (miter-limit: 100)) or whatever large number.