RXP Flight Sim

I have enjoyed in the past manually retrofitting RXP gauges into my various panels. With the newer GNS and GTN gauges, I have not been able to find any reference to the actual gauge resolution. In the older GNS WAAS package, this information was in the Service Manual. I have used the panel configuration tool to install some popup windows, then note the sizes (eg: 159 x 152 for GTN750). This gives me the relevant proportions, but not the actual resolution of the gauges. It would be useful for me to have all the information noted down somewhere.