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docs: encode speed tips do not apply to truecolor-alpha [skip-ci]

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the worst-case file sizes make it not worth changing defaults
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Randy 2022-10-28 16:59:33 +03:00
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docs/encode.md
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@ -209,7 +209,7 @@ The default encoder settings match the [reference implementation](http://libpng.
and will produce files of the exact same size, but there are settings that offer
better performance for a small increase in file size. Reducing compression level (set `SPNG_IMG_COMPRESSION_LEVEL` to a value lower than `6`) will reduce encoding time for all image types.
* Truecolor and truecolor-alpha images - Reduce compression level (between `1` and `5`) and leave everything else on defaults,
* Truecolor images - Reduce compression level (between `1` and `5`) and leave everything else on defaults,
file size should not increase by more than 10% but encode up to three times faster.
* Indexed-color - Choose a reduced compression level (`1`-`5`), file size should stay within 5% but encode up to two times faster.