Thank you!
But, after I spent some time trying to use blurred sprites, I understood that It wasn't a good idea. For example, It created a problem with colliders. So, I decided to draw simple mock substitute images from the scratch for all paid content (including your assets).
The only thing from your work that is left in the build is the names of the files. I would like to keep them, as it will be easy for people to replace mock assets with the real ones.