Icon on M5 paper

[paulpattyn]

I tried nearly everything to get an temperature icon on my M5 paper display I always get something strange but not the icon.
Not any converter did the job????
I am blocked since a few weeks now.
With Uniflow it is easy?
Icon is 80 x 160
arduino code
const unsigned char epd_bitmap_paultestbmp [] PROGMEM = {

};

canvas.pushImage(50,250,80,160,epd_bitmap_paultestbmp );