How to Make 2D k-mesh centred around Gamma point

[Simba2805]

I want to get a grid which is centred at Gamma point. In my band structure, the kpath is along K-G-M. Whose coordinates are (1/3,1/3,0)-(0,0,0)-(1/2,0,0) in reciprocal space. Now kmesh2d function of PyProcar says that it provides a kmesh centred at a given k-point in Brillouin Zone. If I provide x1=1/3, y1=1/3 and x2=1/2, y2=0, how does it know that This grid is around the Gamma point? It does not, right. So how Do I make my kmesh centred at the Gamma point?