Build a smooth color ramp from discrete color stops.

Creates a linearly interpolated gradient between the provided colors.

Parameters

• colors: Uint8Array of color stops [r0, g0, b0, r1, g1, b1, ...] Must have at least 2 colors (6 bytes).
• num_steps: Number of output colors to generate

Returns

Uint8Array of interpolated colors [r0, g0, b0, r1, g1, b1, ...]