The images are not that clear, but could it be that the gray is just an interlaced black (i.e. some pixles of the black don't work)?
@Hank started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
The images are not that clear, but could it be that the gray is just an interlaced black (i.e. some pixles of the black don't work)?