LVGL SD Card and Images

Hello I know this is not the right forum but the LVGL is not very helpful.
Does someone have an example with LVGL 9.2 to display an image.
I tried it with gifs in PNG you can’t compile because it is missing png.h
now I fiddle with bmp’s and I figured out that something is wrong with
this function lv_fs_read(&dsc->file, headers, 54, NULL); is reading garbage