How to reverse Serial Data?

Using Arduino Programming Questions
1

I am using the Dimmer code (https://www.arduino.cc/en/Tutorial/Dimmer)
I want to increase the brightness of LED instead of dimming it.
The code here will fetch the highest serial data and the LED at start is always fully bright.
I want to negate this. I want the reverse version of this code!

I am not sure to edit the arduino code or the processing code.

2 
i = 255 - i;
    // or
i -= 255;
    // or
i = ~i;
3

You have to reverse the for loop of the processing code.

Let it start from 256 instead of 0 and go down till 0 with i--.

Best regards
MajorProb

4

Start at 255, not 256, 256 isn't an 8-bit value.

5

If you're counting down to 0 (inclusive), use an signed variable to hold the count (int8_t or int). This has bitten me a time or two.

best,
Michael