You can change settings for dark mode and the style of thumbnails, as well as the wizard mode.
Edit screen > Right-side top 'More' > Environment settings > General
You can change the dark mode settings. 'Auto' changes the screen to dark at night and to light during the day automatically. You can always set it to 'Light' or 'Dark' as well.
Change the method when downloading the rendered video. If the default method does not work, you can switch to the legacy method.
You can change the style of thumbnails that appear on the home screen. You can choose among 'Horizontal', 'Square', and 'Vertical', and if you often make portrait videos, 'Vertical' is recommended.
You can change whether to activate Wizard Mode when creating 'New'.