checking the FAQs I’ve found this page: https://help.spreadshirt.com/hc/en-gb/articles/207945305-Optimising-pixel-graphics-for-print
Here is said that one should use “speckle” or “dither” in raster images through the blending method “Diffuse” or other methods.
What I don’t understand is:
- Should I apply this blending method to the white background layer only?
- Or to every layer?
- Or only to the layers with transparency?