Color/Apply Gradient
 
 

Replace the texture's colors with a color gradient. To define the new color of a pixel, its grayscale value is taken and mapped to the color gradient.

The new color can come from a gradient, that leads from black to the primary color, from the primary color to the secondary color (P->S) or from the color gradient. Enable the Boolean Color to use only the most left and the most right colors of the gradient. The colors are specified at the Color panel.

You can change the Bias value to shift the gradient to the left (negative values) or to the right (positive value). This way you can rotate the gradient, which can be useful to create animated textures. The animation loop would repeat after 256 bias values.