If the "orange" refers to your notification panel or icons suddenly changing color:

Note that if you are following cross-platform guides, an orange line on a physical switch (like on iPads/iPhones) indicates the device is in Silent Mode . The Redmi Note 8 manages silent mode via the software control center or volume keys. 3. Theme & UI Colors

For , open a contact, tap the three dots in the corner, and select Set ringtone .