svgo --precision

[gurgeous]

I love this gem, how am I just discovering it?!? Especially appreciate the separate pack gem. Great stuff. Thanks for all your hard work creating and maintaining.

When I compress SVGs I always use -p1, which has a tremendous impact on file size. SVG tools always export with tons of extra sigfigs, which svgo can easily remove. Using one of my recent SVG files:

original - 4.5k
after svgo - 3.3k
after svgo -p1 - 2.1k

I've used the precision flag for years on hundreds of SVGs, never noticed a visual difference. It's technically lossy, though.

Can we add support for this? Either --svgo-allow-lossy or --svgo-precision? Happy to try a PR if that would be helpful.

[toy]

Thank you

From what I understand visibility of reducing number of fractional digits will highly depend on svg, from no difference to significant, so it is definitely a lossy option. It can work as similar option for pngquant, jpegoptim or jpegrecompress - if allow_lossy is on, then precision can be specified. Glancing over svgo code, I'd go with default precision to be 3. PR will be very welcome

[gurgeous]

See #211