Feature Request: Generate multi-resolution `favicon.ico` file.

[warnes]

This tool works very well, thanks!

It would be helpful if it would automatically create a multi-resolution favicon.ico file containing the various image resolutions.

[warnes]

ImageMagick command:

mogrify -format ico -density 600 \
    -define icon:auto-resize=256,128,64,48,40,32,24,16 \
    ./favicon-sngroup.com-4-180x180.png

[seadfeng]

This tool works very well, thanks!

It would be helpful if it would automatically create a multi-resolution favicon.ico file containing the various image resolutions.

Do not do multi-size generation processing, if the source image size is too small, generate large size is not feasible!