I imagine that would be the same as a black fill, just in a different color with noise.
I've used the original image data as a fill, but scaled down, so you get a mosaic effect. Then I randomise the tiles in that mosaic and then I blur. The result is that it seems like the original data was redacted but in reality the original data has been scrambled to such an extent that it can no longer be retrieved.
I've used the original image data as a fill, but scaled down, so you get a mosaic effect. Then I randomise the tiles in that mosaic and then I blur. The result is that it seems like the original data was redacted but in reality the original data has been scrambled to such an extent that it can no longer be retrieved.