Yatra One  — Copyright 2015 The Yatra One Project Authors (Catherine Leigh Schmidt). SIL Open Font License 1.1.
Kalam      — Copyright 2014 Indian Type Foundry. SIL Open Font License 1.1.
Inter      — served by WONS Engine from /__wons/fonts/inter.woff2. SIL Open Font License 1.1.
Both woff2 files here are the latin subsets as served by Google Fonts, self-hosted so the app runs offline under a strict CSP.

Baloo 2 — Copyright 2019 The Baloo 2 Project Authors. SIL Open Font License 1.1. Full license: /fonts/baloo-OFL.txt. Self-hosted display font.