No. size is correct on the GIT.
The printable area of the materia is (x,y,z) 140x100x100 mm
In the printer profile on the git the bedsize is set in this line of code:
bed_size = 140,100
X being 140 mm and Y 100 mm
The maximum movement of the printhead on the Materia is:
X: 145 mm
Y: 135 mm