When there is a "column" that is tall with no "lines" in it, imgTop img and imgBottom img don't work together quite as you inspect. In fact, it seems like the image does appear hidden behind the workspace in this scenario. Not necessarily sure it is a bug, it is probably doing the right thing by doing the best it can with the math provided, but I did notice it. You can really notice it if you move the workspace up an down.
When there is a "column" that is tall with no "lines" in it, imgTop img and imgBottom img don't work together quite as you inspect. In fact, it seems like the image does appear hidden behind the workspace in this scenario. Not necessarily sure it is a bug, it is probably doing the right thing by doing the best it can with the math provided, but I did notice it. You can really notice it if you move the workspace up an down.