Christoph M. Becker

Hmm, latest version is 0.7.2, so this looks like pre GA, and is likely not in widespread use. As such, I don't think there is any urgent need to support...

Thank you! This looks correct, but shouldn't we change the following as well: https://github.com/libgd/libgd/blob/dbe3001a125003adb553b9e1cd9443353b1df56a/src/gd_webp.c#L232

`gdColorMapLookup()` is a helper for XPM support; to use it for other purposes, you would need to defined a [`gdColorMap` structure](https://github.com/libgd/libgd/blob/master/src/gd_color_map.h). But I wonder what you're actually looking for. Can...

Thank you for the PR! While that patch wouldn't hurt, it is likely not of great use for this repo; for recent PHP versions you're probably better off using the...

Seems like much work for little gain. Is it that important that users can build the documentation? Otherwise we could build the docs on Windows, and just upload them.

There are no public functions to get a color histogram; internally there are, though, for image quantization (see gd_topal.c). If you want some functionality in PHP, you should file a...

This looks okay to me. I wonder. though, if it makes sense to maintain these tools; they actually look more like examples to me, and their names are somewhat arbitrary.

Yes, Travis is no longer free (FOSS projects get some credits, but when they're gone …). I agree that switching to GH actions is the way forward.

Certainly that's not a bug for libgd, but it is a [bug for the PHP bindings](https://bugs.php.net/73235), so I hope this enhancement will come soon. :-)

I've checked the other quantization methods: - GD_QUANT_JQUANT: no transparency - GD_QUANT_NEUQUANT: alpha channel retained, but no automatic assignment of the transparent color (so GIF will have opaque background) -...