If I put Something Very Long into an LED display component , the black background runs out and turns white which is hard to read , is there a setting in the property editor to make the black background wider ???

If I put Something Very Long into an LED display component , the black background runs out and turns white which is hard to read , is there a setting in the property editor to make the black background wider ???

Bad news: This is a bug we've known about for years and just haven't gotten around to fixing.
Good news: There's a very simple workaround which should solve your issue unless you have special theming rules in place which aren't evident in your screenshot.
Workaround:
backgroundColor as a property of CoordinateContainer.props.style.backgroundColor to have a value of var(--neutral-100). This value should be theme-agnostic and allow this to work even if you're using various built-in themes. This value could stop working correctly if you apply your own styling to the LED Display in any way.Bump!
I feel like this is pretty silly to not address after all these years.
Known for a while 3 years ago, and it’s still an issue in 8.3?
This is not a situation where we aren’t interested in fixing the bug - it is a situation where we constantly have bugs or features of greater import or impact. Coupled with finite resources available to the team responsible for Perspective content, we find many lower-priority tickets have longer lifespans. I’ll update the ticket to reflect additional interest in getting it repaired.