Gradient is a procedural content type that creates a controllable gradient via 3 ramps for the color, value (brightness) and alpha.

Type
Choose from either a linear or radial gradient.
Color Ramp
Use this ramp to control the color of the content.
Value Ramp
Use this ramp to control the brightness of the content.
Alpha Ramp
Use this ramp to control the alpha value of the content.
Rotation, Origin X, Origin Y, Extent
Use these controls to control the start position, extent and rotation of the gradient.
Example Settings
Linear

Radial

Radial - Origin 0.5, 0.5, Extent 2

Linear - Rotation 90

Value Ramp - controlling brightness

Alpha Ramp - controlling transparency
