OTHER UPDATE
While foohyfooh updates his plugin with the injector, I did some additional research on the images and found out that if you strip each 8 bytes sequence in 4 subsequences of 2 bytes and put them together accordingly you get 4 different masks. Bytes 0-1 of each pixel give the low res image in light mode, bytes 2-3 give low res dark mode, 4-5 and 6-7 give a sort of segmentation of the previous interpretations. I am conducting experiments on how to blend them together. If somebody is interested and skilled in image manipulation, don't hesitate to reply or cantact me.