Blend Layer Fade Bottom

Fades the bottom edge of the blend layer image to transparent, overriding blend-fade for that edge.

A value may be given in pixels, or as a fraction from 0.0 to 1.0 of the layer’s height. Lengths follow the Imgix literal rule, so 0.3 is 30% and 1 is one pixel.

A layer’s fade always goes to transparent and never takes bg. Lengths are measured on the layer, not the picture.

Use blend-fade-bottom[N] to target a specific blend layer, where N is 0–3. Layer 0 is either the bare blend-fade-bottom or blend-fade-bottom[0]; if both are supplied, the bare name wins. A layer never borrows another layer’s spelling.