| This article or section documents something not included in the current version of Scratch (3.0). It is only useful from a historical perspective. |
| Change Blur by () | |
| Category | Looks |
| Type | Stack |
| Removed in | 22Dec04 (0.x) |
The Change Blur by () block was a Looks block and a Stack block. The block changes the blur effect of a sprite by the given value. The reason for its removal is currently unknown, but the cause may have been the block not working correctly with transparent images.[citation needed]

Workaround
There is no workaround for the exact effect but a similar one can be pulled off using the ghost and pixelate effect:
change [ghost v] effect by (25) change [pixelate v] effect by (25)