gradient

gradient(stops)

Creates a continuous color scale. Colors are interpolated across the numeric range of the fill field.

stops type	Behavior
str	Named scheme: "viridis", "blues", "reds"
list[str]	Custom color stops interpolated in LAB space

from gofish import chart, spread, rect, gradient

# Named scheme
chart(data, color=gradient("viridis")).flow(
    spread(by="category", dir="x")
).mark(rect(h="value", fill="temperature"))

# Custom stops
chart(data, color=gradient(["#f7fbff", "#08306b"]))

Built-in schemes: "viridis", "blues", "reds"

See also palette for categorical data.