First switch from dark to light or colourful theme.
(Let Accent color was Red in dark theme.)
then again switch from colorful to dark theme. Then...
One Plus 7 Pro bugs:
GPS/Location symbol doesn't disappear after switch off. This can be done only after reboot of device.
CPU-Z showing as Oneplus 7Pro Battery is 3810mAH and company claims it is 4000mAH.
Please clear the rumor