Putting in a warring to help track down widgets that have been put in an invalid state (removed).
Putting in a warring to help track down widgets that have been put in an invalid state (removed).

mmoening/agg-sharp,jlewin/agg-sharp,mmoening/agg-sharp,mmoening/agg-sharp,larsbrubaker/agg-sharp,MatterHackers/agg-sharp