Comment 3 for bug 171918

Another comment after testing the current Icon Preview dialog (still with 'timer->elapsed()' changed from 0.1 to 1.0, Inkscape 0.47+devel r9471 on OS X 10.5.8, same hardware) with Gnome icon files mentioned in bug #270983 by Jimmac:

- The performance issue appears worse with more complex icons, even if the file contains far fewer of them compared to Inkscape's big icon file. Editing a detail of one of the gnome icons while Icon Preview is open is close to impossible.
- Conceptually there is a very important feature missing to make Icon Preview useful with auto-refresh: the user needs to be able to lock the preview to a selection, else the preview always changes to the current object which might be a small path or shape within the icon. Currently the preview works like a continuously zooming looking glass, its strength however IMHO would be to (optionally) auto-refresh a preview of a specific (or locked) selection of the drawing (aka the icon) at several sizes while letting the user work on some details of the icon in the main window.