I understand what you mean when you say they are best on dark or black backgrounds. But for this image I need the bg to be transparent because it will be placed on an IMVU web page for and act as a sticker.
It needs to have the ability to let the other images show beneath the image of falling snow.
I have seen the effect work quite well with sparkles but I had no idea how to do it. I am glad to finally find this help.
Thanks a lot for your suggestions! 🙂