Inconsistent default central meridian of projection in modern mode

[adigitoleo]

I have found that the central meridian is not set consistently when creating plots in modern mode:

Using an example grid file, e.g.
gridfile.zip

using GMT

gmtbegin("test_grdimage.png")
coast(
    region = :g,
    projection = :Robinson,
    frame = :auto,
    land = :dimgray,
    shore = :thinner,
)
grdimage!(
    "dir.2020.1.GeeK2007.6m.nc",
    cmap = "cyclic",
    nan_alpha = true,
)
gmtend(show = true)

produces:

It is fixed by projection = (; name = :Robinson, center = 180) for example. So probably grdimage is setting a different default value. Low-priority issue since there is an easy workaround. Only affects modern mode.

[joa-quim]

Don't know why this is happening and likely not a GMT.jl error. The coast command above doesn't explicitly set the central meridian (only through the region option) and grdimage should inherit it. It does in classic mode and in GMT CLI, but not in GMT.jl modern mode.