About the JFIF datatype
The JFIF datatype (by Christoph Feck, TowerSystems) doesn't seem to handle
shareable pens on public screens correctly under all circumstances.
If you use this datatype, you have to do the following in order to let
AWeb display JPEG images:
In the JFIF preference editor, you must add an application named
AWebIP
(AWeb Image Processing), and then select
Single-Pass Quantization (in the GadTools version of the
preference editor) or One-pass (in the MUI version).