Set the "printer" PPI explicitly for wxMemoryDC used in the test to ensure that it's the same in all ports: currently wxGTK3 stands out because it uses 72 DPI unlike wxMSW and wxGTK2, which use 96.
Set the "printer" PPI explicitly for wxMemoryDC used in the test to ensure that it's the same in all ports: currently wxGTK3 stands out because it uses 72 DPI unlike wxMSW and wxGTK2, which use 96.