Not that you are really supposed to run them stand-alone?

Printing an error message is better than locking the shell up, honestly.

Isn't strinly-typed programming just lovely?
Fixes #1018

Previously, indices would be wrapped after 256 even without a tilemap;
since RGBGFX can generate...

This causes a libpng warning then error, but print a better error message
Fixes #1016

Fixes #1015

Replacing the big pre-formatted text block with a list brings:
- Better accessibility, obviousl...

The info is better organized this way

This function is made for text, e.g. accepts spaces, leading zeros, etc. before `%u`.
This way c...

Fixes #1009

Otherwise, the arrays get overflowed

This requires a LOT of tricky code, mostly due to the format itself being,
er, not the most stra...

Co-Authored-By: Rangi <[email protected]>

Simplifies iterating over tiles and attributes at the same time

Not available in libstdc++ 7, apparently

Duh

And also the inverted alpha channel condition causing the wrong colors
to be treated as transparent

Support all intended formats and allow partial parsing
<charconv> is not available in GCC 7

This fixes many whitespace issues

Force version.c to be compiled as C++ (bodge, will need a proper fix for `version.c`)
Remove use...

Describe current options, and add some TODOs for functionality to be implemented

Also allow counting an `AssignedProtos`'s number of proto-palettes

We are about to set all of the pixels anyway

That check was when the image width was in tiles, and another check right below
is the correct e...

The conversion is OK because of the tile amount cap

That's what it actually is, oops
(Required for `minmax_element`)

Conversion may be unspecified, but Windows better do the right thing (or else.)

Be consistent with what we settled on in code

Though none of this has been tested so far...

This notably caused decantation to delete non-empty palettes, which crashes

Rename a poorly-named attribute, and add a bunch of debug logging

And also some ASCII art, perhaps?

Though none of the code involved has been tested in any capacity yet, lol

MSVC's (broken) ABI breaks otherwise.
What the f@!$#ck, Microsoft?
(Thank you based Clang for wa...

Fixes build on some compilers for some reason I fail to understand

As explained by the comment

A black+white palette would turn into white+transparent, removing black pixels
from the palette ...

Compare CGB colors only, including ignoring RGB components if alpha says
the color is transparent

The sorting was performed without updating the mappings, which broke the world.
We can instead s...

Should fix compilation with GCC before 9

Co-Authored-By: ISSOtm <[email protected]>

Either we let libpng handle the transform, or we don't.
But make up your mind!

It gets overwritten right after, and uncovers an error in the interlaced read

GCC 7 fails to deduce the contained type

Which of the two is erroring out can be inferred from the file name,
anyway.

It's tool-specific, so categorize it where it belongs

Currently missing from the old version:
- `-f` ("fixing" the input image to be indexed)
- `-m` (...

Some disjoint sets were mistakenly reported not as such
For example, {0} was considered to inclu...

Teeny tiny

Also correct minor blunders in the man page

As it turns out, it is really difficult to implement, and can be dealt with later.