Define a color gradient by specifying its two extrema colors.
    
                  
                
                
                Parameters
                
                  - 
                    Begin Color (Color) : First color of the gradient
                  
- 
                    End Color (Color) : Last color of the gradient
                  
- 
                    Mid Point (Percentage) : Middle point of the gradient (50% by default)
                  
Presets
                
                Standard Presets: White To Black, Red to Black, Green to Black, Blue to Black, White to Alpha, Black to Alpha, Red to Alpha, Green to Alpha and Blue to Alpha
                Advanced Presets: Binarize Black and White