Is there any way to change the size LyX uses internally when creating
the bitmaps for preview images? In many cases, the default size of the
preview image is to small. I know that I can specify a preview scaling
factor in the graphics settings, however, that causes the *bitmap* to
be scaled -- which then becomes rather unreadable.
Ideally, Lyx would create a new preview bitmap when the scale settings
are changed. A maybe simpler way might be to create the bitmaps
internally for a 200% scale factor and scale them down on screen.