What is brightness gradient? What is hue gradient?

Gradient of lightness: The change from light to dark steps.

Hue, as the name suggests, is the appearance name of various colors, such as red, blue, lemon yellow, etc.

Hue is the primary characteristic of color and the most accurate standard for distinguishing various colors.

In fact, any color other than black, white and gray has the attribute of hue, and hue is composed of primary colors, secondary colors and secondary colors.

All colors have their own appearance, which is called hue.

3. Gradient hue gradient is to add an intermediate color in the process of transitioning from one color to another to make it feel more coordinated.

For example, if red is to gradually fade to yellow, the intermediate color is orange, and orange plays a role in coordinating red and yellow.