Vivo Themes 7.4.4.0 <FAST × Playbook>

You do not have to use a single theme wholesale. Version 7.4.4.0 allows you to combine elements from different sources.

Vivo Themes 7.4.4.0 is a highly recommended utility update for anyone looking to maintain a smooth, highly customized FuntouchOS environment. By smoothing out UI lag, optimizing font integration, and stabilizing animated lock screens, this version ensures your phone's software looks exactly how you want it to without sacrificing battery life or performance. vivo themes 7.4.4.0

This is an Android-level security restriction, not a bug in Vivo Themes 7.4.4.0. To force compatibility, ensure your phone's Display & Brightness > Font Style matches the selection made inside the Themes app. Conclusion You do not have to use a single theme wholesale

Cache conflict with older version. Fix: