Postcard short knife gradient

Quick answer：

The term 'postcard short knife gradient' seems to refer to a visual effect or design element where a gradient is created using short, knife-like strokes. This could be a technique used in digital art, graphic design, or even traditional art mediums to add depth and texture to a design. Gradients are smooth transitions between two or more colors, and when combined with short knife strokes, it can create a dynamic and intricate pattern.