We are using fixed windows with close confirmation (which requires the user to tick the box and click a button to close the fixed window) to replicate a 'splash screen' :
tick box (unticked)
tick box (ticked)
Unfortunately, experience builder does not have any controls to change the colours/style of the tick boxes in the browser editor :
window settings - no tick box styling available
Looking at the JSON, and not much in there either, just wondered if there were any key:values that could be set to alter the tick box style so it's easier for the users to see when they have ticked the box!?
window json