No i haven't but, here is the very simple code: after uploading the bmp images into SPIFFS, I created a list of "if" statements......
if (moonData.phase == 7) {
gfx.drawBmpFromFile("/7_wan_cresc.bmp", 90, 260);}
and it works great except that the images are colorized blue and yellow and not in greyscale as image. Any ideas of how to change this?