image optimizer for web

-jpgconvert producing color JPEG for grayscale PNG inputs

dan said, on 20/10/2021
Two identical images:

pingo -jpgquality=90 -sb image.jpg
8-bit JPEG:

pingo -jpgconvert=90 -sb image.png
24-bit JPEG:

The output is identical but -jpgconvert should produce an 8-bit JPEG in this case. I currently have to use jpegtran to discard the chroma channels due to this issue.
cédric (dev) said, on 26/10/2021
would be fixed in next release — thanks for report