This is a prototype implementation of a picker API for Chrome built on ArcsJs that allows permission-less access to fingerprintable resources while being extensible, and fingerprint resistant. This allows developers to create custom font pickers like the one shown below without accessing the full set of local fonts.
For documentation and sample code, see the explainer.
For a more sophisticated, full-featured demo, see the integration of FontChooser and PhotoChooser inside the QuillJS rich text editor.