Been playing with a video/article concept as of late with the working title"What you see is NOT what you get", pertaining to making things #accessible to fully #blind users.
A lot of #accessibility issues are easy to visualize: a missing ramp in front of a building, bad contrast, missing captions etc. but #screenReader accessibility is a lot more nebulous because there's actually not that much reading of the screen happening. I can't "point" at a screen reader accessibility issue because it happens behind the curtain, in the land of metadata, APIs and standards, rarely on the actual screen, which also makes it more difficult to "visualize" for devs. hrmm.