Table selector is opaque

[robroc]

Excalibur 0.4.2
Python 3.6.7
Installed in a conda environment
Windows 7

The table selector is opaque, making it impossible to see where the columns are in case more need to be added.

Screenshot:

[mikes2nd]

I am also getting this same issue on Windows 10

[baptmont]

Same thing was happening to me.
I fixed it by adding
imagepaths[page] = imagepaths[page].replace("\\", "/") in the /workspaces/string:file_id endpoint.