It looks like a number of people have downloaded my Shape Tag object, so I thought I should post a notice of this minor update.
I added a switch parameter for Mask, which simply fills the shape with a solid white fill. There are parameters for the solid fill and the white pen, so you can 'localize' it as needed.
I tried to update the file in the d/repository, but that returned fail. So if you have ever wanted a masking fill in your shape tag, you can download the new one directly from me. The file name is unchanged and the mask defaults to off.