offsets not supported for img tags

In the [documentation](https://code.google.com/archive/p/vsfiltermod/wikis/NewTags.wiki) for img tags we have `\$img(path_to_png_file[,xoffset,yoffset])` for which `xoffset` and `yoffset` are not supported here. Is there a possibility for this being resolved or this particular feature was dropped for some reason?