Grayscale Preview for Aseprite

Aseprite doesn’t have a built-in grayscale preview, so I made this small script to quickly check values without modifying colors. It works by creating an color layer at the top that displays your artwork in grayscale.

For quick access, I set it to F6, allowing me to toggle it on and off instantly.

You can set your own shortcut by going to:

Edit > Keyboard Shortcuts > Search "Toggle Grayscale Overlay" > Assign a Key

Kinda a workaround, but it does the job.