Modify system fonts, status bar layouts, accent colors, and gestures far beyond what stock ColorOS allows.
However, that's not the end of the story. There are a few promising avenues: oppo reno 2 custom rom
The Ultimate Guide to Oppo Reno 2 Custom ROMs: Breathe New Life into Your Device Modify system fonts, status bar layouts, accent colors,
If you manage to unlock your device, several ROMs are currently leading the pack in terms of stability and features: Modify system fonts