code: public static final int argb_fromNormalized(final double a, final double r, final double g, final double b){
  		return argb_bounded((int)Math.round(a*0xff), (int)Math.round(r*0xff), (int)Math.round(g*0xff), (int)Math.round(b*0xff));
  	}
docs: Packs normalized ARGB color components (values in [0.0 .. 1.0]) into a
  single 32bit integer value.
  Component values less than 0 or greater than 1 are clamped to fit the range.
  @param a alpha
  @param r red
  @param g green
  @param b blue
  @return packed ARGB value
  
  @see #rgb_fromNormalized(double, double, double)
  @see #argb(int, int, int, int)
  @see #a_normalized(int)
  @see #r_normalized(int)
  @see #g_normalized(int)
  @see #b_normalized(int)
  @since 1.2