Hey guys, I created a simple “noise” script. GIMP has something similar, and I was missing it in Aseprite.
By default, it will create a new layer and scatter it with single pixel dots in your current foreground color. You can control the density with the first script option (higher numbers = LOWER density).
Even better, if you want to create noise using a brush, all you have to do is choose the “Use current brush” checkbox and the script will apply the brush anywhere it would have created a speck of noise.
Download and further explanation here: