Split Layer

Splits a layer according to color. This is useful in combination with the Colorize Mask and R + mouseleft to select layers at the cursor.

Put all new layers in a group layer

Put all the result layers into a new group.

Put every layer in its own, separate group layer

Put each layer into its own group.

Alpha-lock every new layer

Enable the alpha-lock for each layer so it is easier to color.

Hide the original layer

Turns off the visibility on the original layer so you won’t get confused.

Sort layers by amount of non-transparent pixels

This ensures that the layers with large color swathes will end up at the top.

Disregard opacity

Whether to take into account transparency of a color.

Fuzziness

How precise the algorithm should be. The larger the fuzziness, the less precise the algorithm will be. This is necessary for splitting layers with anti-aliasing, because otherwise you would end up with a separate layer for each tiny pixel.

Palette to use for naming the layers

Select the palette to use for naming. Krita will compare the main color of a layer to each color in the palette to get the most appropriate name for it.