private void incrementColors() {
    		if(isbottomColorShifting)
    			bottomColor = colorShiftVals[colorShiftIndex];
    		else
    			topColor = colorShiftVals[colorShiftIndex];
    		colorShiftIndex += 1;
    		if(colorShiftIndex == colorShiftVals.length) {
    			colorShiftIndex = 0;
    			if(isbottomColorShifting) {
    				isbottomColorShifting = false;
    				colorShiftVals = Gradient.buildRandomGradient(topColor, 210, COLOR_SHIFT_SPEED);
    			}
    			else {
    				isbottomColorShifting = true;
    				colorShiftVals = Gradient.buildRandomGradient(bottomColor, 210, COLOR_SHIFT_SPEED);
    			}
    		}
    	}