Since you will be re-doing how Cwicly handles fonts, please consider adding the ability to use system fonts. There would be performance advantages since no download time is required.
“System fonts are Free, look pretty darn good as they match the OS, and no download time required! They are used by Weather dot com, GitHub, Bootstrap, Medium, Ghost, Booking dot com, PubMed, and even your WordPress dashboard.”
“system font stack was about 6% faster than using Google fonts”
Info from Moving to a system font stack in WordPress (how and why)