Function SimpleBMPImage.modifyPixel
Add colors (-255 to 255) to pixel at x,y (origin at lower left)
					
			void modifyPixel
			(
			
			  int x,
			
			  int y,
			
			  int red,
			
			  int green,
			
			  int blue
			
			) pure @nogc;
					
				
			Parameters
| Name | Description | 
|---|---|
| x | The X coordinate of the pixel (origin at lower left). | 
| y | The Y coordinate of the pixel (origin at lower left). | 
| red | The intensity of the red color component (0 to 255). | 
| green | The intensity of the green color component (0 to 255). | 
| blue | The intensity of the blue color component (0 to 255). |