Hi, Ian
API allows only reading images from resources. In other cases developers typically use img files that plug-in reads/unpacks itself. We think your request is rational, but it’s enough hard to predict what woud be a result: positive or negative
Really, a simple fitting image to screen can be not enough, image can be “too black” (problems with graph’s visibility), image file is missed if plug-in is moved from to another mac etc. Say shorter, the feature is “too big and too blurred”. So, sorry, but no.
But you can do with Path2Line 
