You can now create a full sheet of glitters based on a solid color, a gradient or even a pattern.
The script will create a separate glitters layer the full size of your currently open image. Since it will work on a new layer, you can run the script on a work in progress.
Since you are going to get a full sheet of glitters, there will not be any visible seam and each run will yield a slightly different pattern so you can run the script multiple times to create glittered papers without them looking like you just colorized the same one.
Compatible with PSP8 and up.
If you want options for creating glitter tiles, you might want to look at the Glitters B script.