This is not currently possible; without scaling the whole application, which might cause issues elsewhere.
As a workaround, hovering your mouse over that area and Windows Key + (Plus) could be your friend. Windows Key Esc to come out of magnifier mode.
Aaron Skoczen
This is more of an annoyance, than an issue, but this there a way to increase the font size of the toolbars and Totals? Everything on the GUI of the desktop version is fine, but these are extremally small. See attached