Being kind of new to Blender, Shaders are still kind of a mystery for me, I tried adding a Gradient Shader to the Background in World, to my surprise, I couldn't find any sliders or colors! is there a way to change the default colors in Gradient shader?
The Gradient texture outputs a numerical value between
1. You can create a color gradient from this by plugging the gradient texture into a Color Ramp node.
The Color Ramp takes a value between
1 (values outside this range are clamped) and outputs the color from the proper place along the set gradient. A value of
0 will output the color on the far left, a value of
1 will output the color on the far right.
You can create a custom gradient by adding color swatches, Cycles interpolates the colors between each swatch. Add a new color swatch by clicking the "+" button, select a swatch to change its color and position.
As a technical side note, the gradient node is actually a texture not a shader. A shader is a set of instructions that tell Cycles how light interacts with the surface or volume of an object, a texture is an array of colors.