Keywords: greg-2011

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### New

- An interactive ``lens'' tool: browsing and zooming in your figures is now enhanced thanks to a new tool: i) open the lens with a center-click on any plotting window, ii) zoom in or out with the mouse wheel, iii) enlarge or reduce the lens with CTRL+wheel, iv) close the lens with center-click again.

- PNG hardcopies: in the context of modern use of figures (e.g. digital presentations, webpages, etc), Greg plots can now be transfered natively to PNG images. See `HELP GTVLHARDCOPY` for details. In particular, these images support background transparency