Thanks for your reply. I understand about Overlays. I have Air Manager and I have created panels using various overlays for the Pop Out Instruments such as the G1000 and GNS400.
In fact I have done that on the instrument panel that I have created for my Diamond DA40 TDI.
However, the Garmin Pop Outs have a full frame within which the digital fields are displayed - with background colors and labels. They don’t just give you the digital fields in a blank (black) background. See image example.
I can create a background with transparent sections to allow the digital fields from the RPM pop out gauges to show through, but it is a huge job to create it - (very small and precise work in Photoshop) - but the result will still not be very authentic because the blank LED positions will show as black rather than ‘unlit’.
If the Garmin windows pop out WITH backgrounds (and even touch tabs with the GX3) then it would seem logical that the gauges for RPM and fuel etc. should also have backgrounds and labels around the digital fields rather than just a black square. (I mean, we do not have to create an overlay to activate any menus or buttons etc.)