It is recommended to use the “.h5bmp” extension for H5BMP bitmaps (where applicable). H5BMP is identified by the MIME type application/x-h5bmp
It is identified by the null-terminated ASCII string ‘H5BMP\0’. These six bytes shall appear at the start of every bitmap. After the identifier string, two bytes shall follow and mark the bitmap height, and right after two bytes shall indicate the bitmap width. Following the height and width, (width times height) two-byte pixels follow, where each string of (width) pixels represents a row, starting from the top left of the image.
RRRRR GGGGG BBBBB A