Brion Vibber wrote:
The tex rendered images are derived assets created on-demand for rendered
invocations of the<math> tag. They have no descriptions, metadata, or
independent existence -- rather they should be considered similar to the
rest of the HTML output on an article page, such as paragraphs and tables.
-- brion
They may not even have an image, depending on your user preferences and
how simple it is to render with just html.