We set up our app to be able to match the light/dark mode an iPhone/iPad user has set up in their devices Settings.
Please check your device's overall Settings and make any adjustments as needed.
Here is one Apple Article on how to change your iPhone/iPad to the dark more: please click here. Please also contact Apple Support or check their self help articles for more information as needed.
The Lloyd app itself can not be set up with a different light/dark mode versus the overall device's Settings.