sl [Tue, 20 May 2014 22:31:46 +0200] rev 5
Adding SetPixelBlock function which is now used by SetPixel.
It allows us to fill our screen much faster than one pixel at a time.
sl [Tue, 20 May 2014 18:13:22 +0200] rev 4
Adding button to reset a defined pixel.
Slow implementation for setting all pixels.