Cannot display properly the colors of the project in test mode

Hi everyone, I'm facing a bug when I run the app in test mode: I do not seen the actual color of my project (the white background for example), but yes I see them properly in preview mode

I attach some screenshots to let you see

I tried to click the icon to switch kìlight/dark mode but it only changes the color of the web page (chrome) not the app itself

2023-10-31 02_09_48-Test Mode - BudgetTracker.png

37.95KB

2023-10-31 02_03_55-app.flutterflow.io_project_budget-tracker-2tdcjj_tab=uiBuilder&page=HomePage.png

42.08KB

2023-10-31 02_03_04-Test Mode - BudgetTracker.png

34.13KB

How can I solve the issue?

Thank you