Suggest an alternative to

colofilter.css

Colofilter.css - Duotone filters made with CSS !

Why do you think that https://github.com/HubSpot/vex is a good alternative to colofilter.css

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with colofilter.css. Optional.

A valid email to send you a verification link when necessary or log in.