code: public void setBackground(float x, float y, float z, float a) {
  		gl.glClearColor(x / 255, y / 255, z / 255, a / 255);
  	}
docs: Sets the background to a RGB and alpha value.
  
  @param x
  The R value of the background.
  @param y
  The G value of the background.
  @param z
  The B value of the background.
  @param a
  The alpha opacity of the background.