Touching Up Using the [Blending mode] of the Layers

Shadow is added to the clothing using the [Blending mode] of the layers. Changing the [Blending mode] of the layers allows you to apply various effects to areas where the color overlaps with layers below.

For details on the [Blending mode] of the layers, see "CLIP STUDIO PAINT User Guide"→ "Layer Palette" → "Layer Operations" → "Configuring the Combine Mode".