We should check for whether most pixels of the thumbnail border fall within the definition of "glass" before applying the transparency operation. This will add flexibility for the stacked viewer to work more seamless with non-WSI images (by not applying transparency inappropriately).
We should check for whether most pixels of the thumbnail border fall within the definition of "glass" before applying the transparency operation. This will add flexibility for the stacked viewer to work more seamless with non-WSI images (by not applying transparency inappropriately).