Hi,
right, at the moment, there are no grayscale/black/whire previews,
I have noted it as features request and will add that in a following release,
but with some batch/script knowledge and a tool at build grayscale images (e.g. imagemagick),
it would be already possible:
- use the kmakemultires tool to create all files
- convert the preview to grayscale
- create a single swf file with the "kprotectcl" tool
best regards,
Klaus