In article , "Leo Lichtman" wrote:

"Doug Miller" wrote: (clip) ???? In all cases, the image needs to be
printed mirror-reversed so that it
will appear correctly on the object.
^^^^^^^^^^^^^^^^^^^^^
If you print dark colored lettering onto a dark surface, it will not be
visible. The transfer material for this includes a white background, and it
is ironed on image side up--ergo, not reversed.
^^^^^^^^^^^^^^^^^^^^
This has _absolutely nothing_ to do with the color of either the image or
the background.
^^^^^^^^^^^^^^^^^^^^
It does if you want to be able to see the image. Been there--done that.

No, it doesn't. Mirror-reversing the image has absolutely nothing to do with
the contrast of the image against its background -- but it has everything to
do with whether lettering will appear correctly, or mirror-reversed, once the
transfer is applied.