Remove Reply's M2 custom brand colors in favor of M3 baseline + Dynamic colors.
Remove Color.xml
Remove Color from theme.xml
Make StatusBar and Navigation Bar (Back, Home, Recent Bar) transparent.
Removed themes to the Profile Selection. However, I don't think this is necessary because the updates will make this obsolete. (Good learning opportunity though).
Ensure Pre-29 APK remains an appropriate colour, in this case purple was the Material Default.
Color.xml
theme.xml
APK 28:
APK 31