Current sanitization of fill color prevents no-comma function syntax from working

[dotterian]

No-comma color functions syntax is valid CSS, is supported by all major browsers and used by me in production:

color: rgb(255 255 255/.5); /* Semi-transparent white */

But with current parameter sanitization it transforms into unparseable mess:

--squircle-fill: rgb(255255255/.5); /* Weird $#!7 */

This raises a question:
What was the reason of adding .replace(/\s/g, "")?
Can we safely remove it or replace it with something more refined, so we can keep no-comma syntax intact?

[PavelLaptev]

Thank you @chrisyalamov for contributing 🙏 I'll add this into the next release