By default the grave accent will be drawn as a degree symbol, a #define has been added so it can be swapped back to the grave accent.
Corrected font 2 rendering issue #402 Corrected NULL pointer issue #400 Changed grave ` character (key for this character is left of numeral 1 key) to degree symbol in font 2 Change setup24 so DC pin is not D3
Not yet fully tested but seems to work OK!