I apologize if this isn't a firmware issue:
The 2 intermediate grays on the 4.26" monochrome grayscale display from seeed appear to be inverted (see attached). I am using a seeed studio EN05 as the driver board, on firmware version 2.23. I'm happy to share further details, I just don't know what would be helpful.

I apologize if this isn't a firmware issue:
The 2 intermediate grays on the 4.26" monochrome grayscale display from seeed appear to be inverted (see attached). I am using a seeed studio EN05 as the driver board, on firmware version 2.23. I'm happy to share further details, I just don't know what would be helpful.