ffmpeg - Turning a series of PNG files into GIF with black transparent background - Super User

I have a series of RGB PNG images and I'd like to turn them into a single animated GIF file with black=transparent. The following command was recommended elsewhere, but it doesn't seem to turn the

ffmpeg - Glitch when creating transparent animated gifs - Stack Overflow

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7941 (Transparency broken when encoding animated webp) – FFmpeg

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introducing AVConvert - free context-menu video and audio conversion/extraction - Cockos Incorporated Forums

How can we convert an animated gif into a png file without losing its quality? - Quora

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animation - Glitchiness when I add transparency to a gif and convert it to webm - Stack Overflow

transparency - ffmpeg: disable transparent in all gif frames - Super User

GIF - Wikipedia

GIPHY Engineering » Modifying FFMPEG to Support Transparent GIFs » Modifying FFMPEG to Support Transparent GIFs