Remarks: When searching for a global palette for 8-bit bitmaps, the directory entry name for the global palette will always '!pal'. Once the '!pal' directory entry has been found, the global palette can be extracted and used for any bitmaps that use 8-bit indexed color. If no global palette is found, FSH decoders should look for a local palette directly following the indexed bitmap. If no palette is found, then no palette will be created or associated with the bitmap.
Offset of the entry in the FSH file, in bytes.