On Windows I use Paint Shop Pro 5.0, which is from the 1990s! It has a nice batch processor to convert bmp/gif/png but not to change that background in batch mode, only 1 by 1.
On Mac, I use Paintbrush, or Inkscape for svg. Gimp is quite complex for someone like me. I've found they have a batch processor, that's why I tried. I have uploaded a new set of .png but I doubt they have the transparent background now. I don't see the difference, except the files are lighter now.
I don't plan to use my graphics for the IDs. For that I prefer Alfaerie SVG. My motivation was only to provide people with the graphics I use with ZoG, better than the very old ones I had once given to Hans B and which are present on this CVP site (it was in 2000!). It is a modest goal. My graphics are not as good as Alfaerie.
On Windows I use Paint Shop Pro 5.0, which is from the 1990s! It has a nice batch processor to convert bmp/gif/png but not to change that background in batch mode, only 1 by 1.
On Mac, I use Paintbrush, or Inkscape for svg. Gimp is quite complex for someone like me. I've found they have a batch processor, that's why I tried. I have uploaded a new set of .png but I doubt they have the transparent background now. I don't see the difference, except the files are lighter now.
I don't plan to use my graphics for the IDs. For that I prefer Alfaerie SVG. My motivation was only to provide people with the graphics I use with ZoG, better than the very old ones I had once given to Hans B and which are present on this CVP site (it was in 2000!). It is a modest goal. My graphics are not as good as Alfaerie.