We can have more blight graphics if someone is willing to make them. They are in the media pack as blight.fxsxml. If someone makes blight2.fxsxml, blight3.fxsxml, blight4.fxsxml, etc I'd be happy to add them. The variation could follow plot types but don't have to. They are "overlaid" on top of plot type graphic (not substituting for it) so variation can be conditional on anything we want.
Sort of related: we don't have graphics for blight+resource. So blight ends up erasing all resources graphically even though they are still there and can be seen in mouseover (and strategic view I think).