[AnotherGoodName]

There simply doesn’t seem to be that many different images so I can imagine an even easier way than an image classifier.

As you work through your day as a satellite image person (I don’t know the job title, sorry) and see a shape that looks like a letter screenshot and save it. You’ll have an alphabet in a very short amount of time.

Given the repeats of letters I’m seeing I think that’s all they’ve done here.