So,

to preface, this is more of a question and less of a bug.

I've been trying to get a little bit more control on how my custom sleep screen is rendered.
Notably, I would like to draw 2-bit bmp without dithering.

I checked Bitmap.cpp and it seems like crosspoint already does not try to apply dithering IF and only IF the file is a 1-bit or 2-bit bitmap, see

The problem is that, if I understand correctly, 2-bit bitmaps are not really a thing, in the sense that they are not standard-compliant, right?
It's either 1-bit or then 4-bit with a corresponding LUT for the brightness values.

The annoying thing here is that tools like ImageMagick do not support such a 2-bit BMP.

You guys got a recommendation for a tool, or should I just whip up my own encoder to generate such a 2-bit BMP?