I think that the colors in the colorbar are shown upside down. I saw this in my own code, but looking at the linked example, it is also happening there: the blueish should be at the bottom (close to zero) and the orange-red should be at the top (close to 1.5).
Yes I can confirm that this has been fixed on main. Itβs due to a bug in the Typst compiler but beginning with the next version of Lilaq, an internal workaround will fix the issue :)