It’s trivially easy to get a file listing — it’s getting it as text that can be put into a document…
Steve Dutch

As for rotating, it’s trivial to rotate images 90 degrees, you just swap the x and y coordinates of pixels. Can you rotate by an arbitrary angle and still get a clean image?

Yep. Works here. Once you’re in indexed mode, the colors shouldn’t change just because you’re rotating the canvas (by 90° or any other angle).

The trick may be to stick to rotating the canvas as opposed to creating a layer and rotating the data on that layer — that might require shifting to 8/8/8, because there’s no accommodation for layering in an indexed color space.

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