Default value
0
Currently this only applies to images.
If you attach an image to an atom, normally it is seen only in addition to the atom’s regular icon. If the image’s override var is 1, it will be seen in place of the original atom (and its overlays). It will inherit the atom’s color, alpha, transform, and appearance_flags, unless its own appearance_flags say otherwise.
If the image has a specific name and/or suffix value, those will override the parent atom too. Leaving them blank will let the original atom take precedence.