Export multicolor design from OpenSCAD

Bambu Studio 2.5 supports using color information in an imported .3MF file. Recent versions of OpenSCAD (I’m using 2025.12.21) support color information in .3MF files. If I export a .3MF file with color info and save it to disk, open BS and import that file, the color information is retained. However, if I use the OpenSCAD option to export the file directly to BS, the file is opened with no color information. I have OpenSCAD configured to just pass the file name to the BS command line. I looked at the other command line parameters and tried a couple, but I didn’t find one that would make the model open with color in BS. Has anyone gotten color to work when exporting directly into BS?