Hi again Connie,
I received your e-mail with the image sample, and it looks like ThumbsPlus is just not interpreting the image correctly. It shows as all black, as you've also noted. I've also tried with a few different programs. Irfanview 4.40 also shows it as all black, but Imagine shows it correctly as a black outline against the checkered backdrop of the alpha channel.
Your image is in 8-bit greyscale PNG format. There's nothing wrong with that, but it's not a very common format. When I change its color space to 24 bit RGB, ThumbsPlus shows it correctly.
I have forwarded the image to Cerious in hopes that they'll fix this in a future release.
So, at this point, I can only offer you the work-around of promoting the images' colorspace to 24b, but I'm not sure if you'll want to do that, because you may have other programs that require the image to remain in 8b greyscale format.. please decide for yourself.
If you do want to promote a single image to 24b, here's how to do it:
[*]Open it in the viewer
[*]Apply Image | Mode | 24-bit RGB
[*]Use Save or Save As to save the image in PNG format, then close the viewer.
[*]When you next thumbnail or open the saved copy, it will show correctly.[/list]
To promote multiple images to 24b:
[*]Select the images (thumbnails) in ThumbPlus
[*]Go to Image | Batch Process. On the Input Files tab, set 'Files to process' to 'Selected files'. On the Batch Steps tab, use Add | Image | Color Depth and set Desired Color Mode to RGB (24-bit). On the Output Details tab, use PNG as the output format. If you do not want your original files to be overwritten, you can add a suffix (e.g. '-24b') to the filenames that the converted versions will be written to, or you can specify a different output folder.
[*]When you press OK, the batch process will run. The output files should look and thumbnail correctly.[/list]
Regards,
-Daan-